SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                  SCHEDULE 13G



             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
           TO RULES 13d-1(b)(c), AND (d) AND AMENDMENTS THERETO FILED
                            PURSUANT TO RULE 13d-2(b)
                                (Amendment No. 1)


                                 Avantair, Inc.
--------------------------------------------------------------------------------
                                (Name of Issuer)


                    Common Stock, par value $0.0001 per share
--------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                    05350T101
--------------------------------------------------------------------------------
                                 (CUSIP Number)


                                December 31, 2007
--------------------------------------------------------------------------------
            (Date of Event Which Requires Filing of this Statement)


     Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

          [_]  Rule 13d-1(b)

          [X]  Rule 13d-1(c)

          [_]  Rule 13d-1(d)



CUSIP No.  05350T101
           ---------------------

1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     Jeffrey L. Feinberg

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                 (a)  [_]
                                                                 (b)  [X]

3.   SEC USE ONLY

4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     United States

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5.   SOLE VOTING POWER

     0

6.   SHARED VOTING POWER

     566,750

7.   SOLE DISPOSITIVE POWER

     0

8.   SHARED DISPOSITIVE POWER

     566,750

9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     566,750

10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

                                                                          [_]
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

     3.72%

12.  TYPE OF REPORTING PERSON

     IN, HC



CUSIP No.  05350T101
           ---------------------

1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     JLF Asset Management, L.L.C.

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                 (a)  [_]
                                                                 (b)  [X]

3.   SEC USE ONLY

4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5.   SOLE VOTING POWER

     0

6.   SHARED VOTING POWER

     566,750

7.   SOLE DISPOSITIVE POWER

     0

8.   SHARED DISPOSITIVE POWER

     566,750

9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     566,750

10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

                                                                          [_]
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

     3.72%

12.  TYPE OF REPORTING PERSON

     OO



CUSIP No.  05350T101
           ---------------------

1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     JLF Partners I, L.P.

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                 (a)  [_]
                                                                 (b)  [X]

3.   SEC USE ONLY

4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5.   SOLE VOTING POWER

     0

6.   SHARED VOTING POWER

     240,299

7.   SOLE DISPOSITIVE POWER

     0

8.   SHARED DISPOSITIVE POWER

     240,299

9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     240,299

10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

                                                                          [_]
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

     1.58%

12.  TYPE OF REPORTING PERSON

     PN



CUSIP No.  05350T101
           ---------------------

1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     JLF Offshore Fund, Ltd.

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                 (a)  [_]
                                                                 (b)  [X]

3.   SEC USE ONLY

4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     Cayman Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5.   SOLE VOTING POWER

     0

6.   SHARED VOTING POWER

     308,342

7.   SOLE DISPOSITIVE POWER

     0

8.   SHARED DISPOSITIVE POWER

     308,342

9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     308,342

10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES

                                                                          [_]
11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

     2.03%

12.  TYPE OF REPORTING PERSON

     CO



CUSIP No.  05350T101
           ---------------------

Item 1(a). Name of Issuer:

           Avantair, Inc.
           ---------------------------------------------------------------------

Item 1(b). Address of Issuer's Principal Executive Offices:

           4311 General Howard Drive
           Clearwater, Florida 33762
           United States of America
           ---------------------------------------------------------------------

Item 2(a). Name of Persons Filing:

           Jeffrey L. Feinberg
           JLF Asset Management, L.L.C.
           JLF Partners I, L.P.
           JLF Offshore Fund, Ltd.
           ---------------------------------------------------------------------

Item 2(b). Address of Principal Business Office, or if None, Residence:

           Jeffrey L. Feinberg
           c/o JLF Asset Management, L.L.C.
           2775 Via de la Valle, Suite 204
           Del Mar, CA 92014

           JLF Asset Management, L.L.C.
           2775 Via de la Valle, Suite 204
           Del Mar, CA 92014

           JLF Partners I, L.P.
           c/o JLF Asset Management, L.L.C.
           2775 Via de la Valle, Suite 204
           Del Mar, CA 92014

           JLF Offshore Fund, Ltd.
           c/o Goldman Sachs (Cayman) Trust, Ltd.
           P.O. Box 896, 2nd Floor
           North Church Street
           George Town, Grand Cayman
           Cayman Islands
           ---------------------------------------------------------------------

Item 2(c). Citizenship:

           Jeffrey L. Feinberg - United States
           JLF Asset Management, L.L.C. - Delaware
           JLF Partners I, L.P. - Delaware
           JLF Offshore Fund, Ltd. - Cayman Islands

Item 2(d). Title of Class of Securities:

           Common Stock, par value $0.0001 per share
           ---------------------------------------------------------------------

Item 2(e). CUSIP Number:

           05350T101
           ---------------------------------------------------------------------

Item 3.    If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b)
           or (c), Check Whether the Person Filing is a:

     (a)  [_]  Broker or dealer registered under Section 15 of the Exchange Act.

     (b)  [_]  Bank as defined in Section 3(a)(6) of the Exchange Act.

     (c)  [_]  Insurance company as defined in Section 3(a)(19) of the Exchange
               Act.

     (d)  [_]  Investment company registered under Section 8 of the Investment
               Company Act.

     (e)  [_]  An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);

     (f)  [_]  An employee benefit plan or endowment fund in accordance with
               Rule 13d-1(b)(1)(ii)(F);

     (g)  [_]  A parent holding company or control person in accordance with
               Rule 13d-1(b)(1)(ii)(G);

     (h)  [_]  A savings association as defined in Section 3(b) of the Federal
               Deposit Insurance Act;

     (i)  [_]  A church plan that is excluded from the definition of an
               investment company under Section 3(c)(14) of the Investment
               Company Act;

     (j)  [_]  Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

Item 4.  Ownership.

     Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.

     (a)   Amount beneficially owned:

           Jeffrey L. Feinberg: 566,750 shares
           JLF Asset Management, L.L.C.: 566,750 shares
           JLF Partners I, L.P.: 240,299 shares
           JLF Offshore Fund, Ltd.: 308,342 shares
           ---------------------------------------------------------------------

     (b)  Percent of class:

           Jeffrey L. Feinberg: 3.72%
           JLF Asset Management, L.L.C.: 3.72%
           JLF Partners I, L.P.: 1.58%
           JLF Offshore Fund, Ltd.: 2.03%
           ---------------------------------------------------------------------

     (c)   Number of shares as to which Jeffrey L. Feinberg has:

           (i)   Sole power to vote or to direct the vote
                                                         0
                                                         -----------------------

           (ii)  Shared power to vote or to direct the vote
                                                         566,750
                                                         -----------------------

           (iii) Sole power to dispose or to direct the
                 disposition of                          0
                                                         -----------------------

           (iv)  Shared power to dispose or to direct the
                 disposition of                          566,750
                                                         -----------------------

           Number of shares as to which JLF Asset Management, L.L.C. has:

           (i)   Sole power to vote or to direct the vote
                                                         0
                                                         -----------------------

           (ii)  Shared power to vote or to direct the vote
                                                         566,750
                                                         -----------------------

           (iii) Sole power to dispose or to direct the
                 disposition of                          0
                                                         -----------------------

           (iv)  Shared power to dispose or to direct the
                 disposition of                          566,750
                                                         -----------------------

           Number of shares as to which JLF Partners I, L.P. has:

           (i)   Sole power to vote or to direct the vote
                                                         0
                                                         -----------------------

           (ii)  Shared power to vote or to direct the vote
                                                         240,299
                                                         -----------------------

           (iii) Sole power to dispose or to direct the
                 disposition of                          0
                                                         -----------------------

           (iv)  Shared power to dispose or to direct the
                disposition of                           240,299
                                                         -----------------------

           Number of shares as to which JLF Offshore Fund, Ltd. has:

           (i)   Sole power to vote or to direct the vote
                                                         0
                                                         -----------------------

           (ii)  Shared power to vote or to direct the vote
                                                         308,342
                                                         -----------------------

           (iii) Sole power to dispose or to direct the
                disposition of                           0
                                                         -----------------------

           (iv)  Shared power to dispose or to direct the
                 disposition of                          308,342
                                                         -----------------------

Item 5.  Ownership of Five Percent or Less of a Class.

     If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more than
five percent of the class of securities check the following [X].

           ---------------------------------------------------------------------

Item 6.  Ownership of More Than Five Percent on Behalf of Another Person.

     If any other person is known to have the right to receive or the power to
direct the receipt of dividends from, or the proceeds from the sale of, such
securities, a statement to that effect should be included in response to this
item and, if such interest relates to more than five percent of the class, such
person should be identified. A listing of the shareholders of an investment
company registered under the Investment Company Act of 1940 or the beneficiaries
of employee benefit plan, pension fund or endowment fund is not required.

           N/A
           ---------------------------------------------------------------------

Item 7.  Identification and  Classification of the Subsidiary Which Acquired the
         Security  Being  Reported on by the Parent  Holding  Company or Control
         Person.

     If a parent holding company or Control person has filed this schedule,
pursuant to Rule 13d-1(b)(1)(ii)(G), so indicate under Item 3(g) and attach an
exhibit stating the identity and the Item 3 classification of the relevant
subsidiary. If a parent holding company or control person has filed this
schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating
the identification of the relevant subsidiary.

           N/A
           ---------------------------------------------------------------------

Item 8.  Identification  and  Classification  of Members of the Group.

     If a group has filed this schedule pursuant to s.240.13d-1(b)(1)(ii)(J), so
indicate under Item 3(j) and attach an exhibit stating the identity and Item 3
classification of each member of the group. If a group has filed this schedule
pursuant to s.240.13d-1(c) or s.240.13d-1(d), attach an exhibit stating the
identity of each member of the group.

           N/A
           ---------------------------------------------------------------------

Item 9.  Notice of Dissolution of Group.

     Notice of dissolution of a group may be furnished as an exhibit stating the
date of the dissolution and that all further filings with respect to
transactions in the security reported on will be filed, if required, by members
of the group, in their individual capacity. See Item 5.

           N/A
           ---------------------------------------------------------------------

Item 10.  Certifications.

     Certification for Rule 13d-1(c): By signing below each reporting person
certifies that, to the best of its knowledge and belief, the securities referred
to above were not acquired and are not held for the purpose of or with the
effect of changing or influencing the control of the issuer of the securities
and were not acquired and are not held in connection with or as a participant in
any transaction having that purpose or effect.



                                    SIGNATURE

     After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

                                                    February 13, 2008
                                        ----------------------------------------
                                                        (Date)

                                        /s/ Jeffrey L. Feinberg (1)
                                        ----------------------------------------
                                        Jeffrey L. Feinberg


                                        JLF Asset Management, L.L.C. (1)

                                        By: /s/ Jeffrey L. Feinberg
                                        ----------------------------------------
                                        Title: Managing Member


                                        JLF Partners I, L.P.

                                        By: /s/ Jeffrey L. Feinberg
                                        ----------------------------------------
                                        Title: Managing Member of JLF Asset
                                        Management, L.L.C., its manangement
                                        company

                                        JLF Offshore Fund, Ltd.

                                        By: /s/ Jeffrey L. Feinberg
                                        ----------------------------------------
                                        Title: Managing Member of JLF Asset
                                        Management, L.L.C., its investment
                                        manager

(1) These Reporting Persons disclaim beneficial ownership except to the
extent of their pecuniary interest therein.



                                                                       Exhibit A

                                    AGREEMENT

The undersigned agree that this amendment to Schedule 13G dated February
13, 2008 relating to the Common Stock, par value $0.0001 per share, of Avantair,
Inc. shall be filed on behalf of the undersigned.

                                        /s/ Jeffrey L. Feinberg
                                        ----------------------------------------
                                        Jeffrey L. Feinberg

                                        JLF Asset Management, L.L.C.

                                        By: /s/ Jeffrey L. Feinberg
                                        ----------------------------------------
                                        Title: Managing Member

                                        JLF Partners I, L.P.

                                        By: /s/ Jeffrey L. Feinberg
                                        ----------------------------------------
                                        Title: Managing Member of JLF Asset
                                        Management, L.L.C., its management
                                        company

                                        JLF Offshore Fund, Ltd.

                                        By: /s/ Jeffrey L. Feinberg
                                        ----------------------------------------
                                        Title: Managing Member of JLF
                                        Asset Management, L.L.C., its
                                        investment manager





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