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                                                                   Exhibit 10.10

                                 PROMISSORY NOTE

$218,000
                                                             As of July 17, 2006

     GRANAHAN MCCOURT ACQUISITION CORPORATION (the "Maker") promises to pay to
the order of David C. McCourt (the "Payee") the principal sum of Two Hundred
Thousand dollars ($218,000) in lawful money of the United States of America
on the terms and conditions described below.

     1. PRINCIPAL. The principal balance of this Note shall be repayable on the
earlier of (i) July 17, 2007, or (ii) the date on which Maker consummates an
initial public offering of its securities.

     2. INTEREST. No interest shall accrue on the unpaid principal balance of
this Note.

     3. EVENTS OF DEFAULT. Each of the following shall constitute an Event of
Default:

     (a) FAILURE TO MAKE REQUIRED PAYMENTS. Failure by Maker to pay the
principal of this Note within five (5) business days following the date when
due. A "business day" for these purposes means any weekday on which banking or
trust institutions in New York are not authorized generally or obligated by law,
regulation or executive order to close.

     (b) VOLUNTARY BANKRUPTCY, ETC. The commencement by Maker of a voluntary
case under the Federal Bankruptcy Code, as now constituted or hereafter amended,
or any other applicable federal or state bankruptcy, insolvency, reorganization,
rehabilitation or other similar law, or the consent by it to the appointment of
or taking possession by a receiver, liquidator, assignee, trustee, custodian,
sequestrator (or other similar official) of Maker or for any substantial part of
its property, or the making by it of any assignment for the benefit of
creditors, or the failure of Maker generally to pay its debts as such debts
become due, or the taking of corporate action by Maker in furtherance of any of
the foregoing.

     (c) INVOLUNTARY BANKRUPTCY, ETC. The entry of a decree or order for relief
by a court having jurisdiction in the premises in respect of Maker in an
involuntary case under the Federal Bankruptcy Code, as now constituted or
hereafter amended, or any other applicable federal or state bankruptcy,
insolvency or other similar law, or appointing a receiver, liquidator, assignee,
custodian, trustee, sequestrator (or similar official) of Maker or for any
substantial part of its property, or ordering the winding-up or liquidation of
its affairs, and the continuance of any such decree or order unstayed and in
effect for a period of sixty (60) consecutive days.

     4. REMEDIES.

     (a) Upon the occurrence of an Event of Default specified in Section 3(a),
Payee may, by written notice to Maker, declare this Note to be due and payable,
whereupon the principal amount of this Note, and all other amounts payable
thereunder, shall become immediately due and payable without presentment,
demand, protest or other notice of any kind, all of which are hereby expressly
waived, anything contained herein or in the documents evidencing the same to the
contrary notwithstanding.

     (b) Upon the occurrence of an Event of Default specified in Sections 3(b)
and 3(c), the unpaid principal balance of, and all other sums payable with
regard to, this Note shall automatically and immediately become due and payable,
in all cases without any action on the part of Payee.

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     5. WAIVERS. Maker and all endorsers and guarantors of, and sureties for,
this Note waive presentment for payment, demand, notice of dishonor, protest,
and notice of protest with regard to the Note, all errors, defects and
imperfections in any proceedings instituted by Payee under the terms of this
Note, and all benefits that might accrue to Maker by virtue of any present or
future laws exempting any property, real or personal, or any part of the
proceeds arising from any sale of any such property, from attachment, levy or
sale under execution, or providing for any stay of execution, exemption from
civil process, or extension of time for payment.

     6. UNCONDITIONAL LIABILITY. Maker and all endorsers and guarantors of, and
sureties for, this Note waive all notices in connection with the delivery,
acceptance, performance, default, or enforcement of the payment of this Note,
and agree that liability shall be unconditional, without regard to the liability
of any other party, and shall not be affected in any manner by any indulgence,
extension of time, renewal, waiver or modification granted or consented to by
Payee, and consent to any and all extensions of time, renewals, waivers, or
modifications that may be granted by Payee with respect to the payment or other
provisions of this Note, and agree that additional makers, endorsers,
guarantors, or sureties may become parties hereto without notice to them or
affecting their liability hereunder.

     7. NOTICES. Any notice called for hereunder shall be deemed properly given
if (i) sent by certified mail, return receipt requested, (ii) personally
delivered, (iii) dispatched by any form of private or governmental express mail
or delivery service provided receipted delivery, (iii) sent by facsimile, to the
principal office of Maker or the home address of Payee as indicated on the books
and records of Maker. Notice shall be deemed given on the earlier of (i) actual
receipt by the receiving party, (ii) the date shown on a facsimile transmission
confirmation, (iii) the date reflected on a signed delivery receipt, or (iv) two
(2) business days following tender of delivery or dispatch by express mail or
delivery service.

     8. CONSTRUCTION. This Note shall be governed by, construed and enforced in
accordance with, the laws of the State of New York, without giving effect to the
conflicts of laws principles thereof.

     9. SEVERABILITY. Any provision contained in this Note which is prohibited
or unenforceable in any jurisdiction shall, as to such jurisdiction, be
ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

     IN WITNESS WHEREOF, Maker, intending to be legally bound hereby, has caused
this Note to be duly executed by the authorized officer named below the day and
year first above written.


                                   GRANAHAN MCCOURT ACQUISITION CORPORATION


                                   /s/ David C. McCourt
                                   ------------------------------------
                                   By: David C. McCourt
                                   Title: President and Chief Executive Officer

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