EXHIBIT 10.4

                             SECURED PROMISSORY NOTE

                                 AUGUST 25, 2004

JERSEY CITY, NEW JERSEY                                              $300,000.00

FOR VALUE RECEIVED, the undersigned, MOBILEPRO CORP., a Delaware corporation
(the "Company"), promises to pay CORNELL CAPITAL PARTNERS, LP (the "Holder") at
101 Hudson Street, Suite 3700, Jersey City, New Jersey 07302 or other address as
the Holder shall specify in writing, the principal sum of THREE HUNDRED THOUSAND
(U.S.) DOLLARS AND 00/100 ($300,000.00) and will be payable pursuant to the
following terms:

      1. AMOUNT OF NOTE. The face amount of this Promissory Note (this "Note")
shall be payable on the earlier of one hundred eighty (180) days from the date
hereof or within fourteen (14) days from the date Solution Technology
International, Inc.'s Registration Statement on Form SB-2 (the "Registration
Statement") to be filed with the United States Securities and Exchange
Commission (the "SEC") pursuant to pursuant to the Registration Rights Agreement
dated August __, 2004 is declared effective (the "Effective Date") by the SEC.
For purposes of clarification, and without limiting the preceding sentence, the
repayment of this Note is in no manner contingent on the Registration Statement
being declared effective by the SEC. The Company agrees to escrow two (2)
requests for advances under the Standby Equity Distribution Agreement by and
between the Company and the Holder dated May 13, 2004 in an amount not less than
ONE HUNDRED FIFTY THOUSAND DOLLARS ($150,000), (referred to as "Advance
Notices") as well as an appropriate number of shares of the Company's Common as
required under Section 2.2(c) of the Standby Equity Distribution Agreement (the
"Escrowed Shares"). The Escrowed Shares are only an estimation of the shares of
the Company's common stock necessary to repay the principal amount and interest
due hereunder. In the event that during the life of this Note the Escrowed
Shares are insufficient to repay all amounts due hereunder the Company shall
immediately escrow, pursuant to the irrevocable transfer agent instructions
dated the date hereof (the "Irrevocable Transfer Agent Instructions") such
number of shares of the Company's common stock sufficient to repay all amounts
due hereunder. The Advance Notice and the shares of the Company's Common Stock
will be held in escrow by the law firm of Butler Gonzalez LLP, which shall
release such request to the Holder commencing on the Monday following either the
earlier to occur of the six (6) months anniversary of this Note the date
Registration Statement is declared effective by the SEC. The Holder may at its
sole discretion retain and apply the net proceeds of each advance (after
deducting any fees owed to the Holder under the terms of the Standby Equity
Distribution Agreement) to the outstanding balance of this Note as existing from
time to time. Interest shall be payable upon the due date of this Note. If this
Note is not paid in full when due the outstanding principal owed hereunder shall
be due and payable in full together with interest thereon at the rate of
fourteen percent (14%) per annum or the highest permitted by applicable law, if
lower. During the term of this Note the Company shall have the

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option to repay the amounts due hereunder in immediately available funds and
withdraw any Advance Notices yet to be effected.

      2. WAIVER AND CONSENT. To the fullest extent permitted by law and except
as otherwise provided herein, the Company waives demand, presentment, protest,
notice of dishonor, suit against or joinder of any other person, and all other
requirements necessary to charge or hold the Company liable with respect to this
Note.

      3. COSTS, INDEMNITIES AND EXPENSES. In the event of default as described
herein, the Company agrees to pay all reasonable fees and costs incurred by the
Holder in collecting or securing or attempting to collect or secure this Note,
including reasonable attorneys' fees and expenses, whether or not involving
litigation, collecting upon any judgments and/or appellate or bankruptcy
proceedings. The Company agrees to pay any documentary stamp taxes, intangible
taxes or other taxes which may now or hereafter apply to this Note or any
payment made in respect of this Note, and the Company agrees to indemnify and
hold the Holder harmless from and against any liability, costs, attorneys' fees,
penalties, interest or expenses relating to any such taxes, as and when the same
may be incurred.

      4. EVENT OF DEFAULT. Upon an Event of Default (as defined below), the
entire principal balance and accrued interest outstanding under this Note, and
all other obligations of the Company under this Note, shall be immediately due
and payable without any action on the part of the Holder, and the Holder shall
be entitled to seek and institute any and all remedies available to it. No
remedy conferred under this Note upon the Holder is intended to be exclusive of
any other remedy available to the Holder, pursuant to the terms of this Note or
otherwise. No single or partial exercise by the Holder of any right, power or
remedy hereunder shall preclude any other or further exercise thereof. The
failure of the Holder to exercise any right or remedy under this Note or
otherwise, or delay in exercising such right or remedy, shall not operate as a
waiver thereof. An "Event of Default" shall be deemed to have occurred upon the
occurrence of any of the following: (i) the Company should fail for any reason
or for no reason to make payment of the outstanding principal balance plus
accrued interest pursuant to this Note within the time prescribed herein or the
Company fails to satisfy any other obligation or requirement of the Company
under this Note; or (ii) any proceedings under any bankruptcy laws of the United
States of America or under any insolvency, not disclosed to the Holder,
reorganization, receivership, readjustment of debt, dissolution, liquidation or
any similar law or statute of any jurisdiction now or hereinafter in effect
(whether in law or at equity) is filed by or against the Company or for all or
any part of its property.

      5. MAXIMUM INTEREST RATE. In no event shall any agreed to or actual
interest charged, reserved or taken by the Holder as consideration for this Note
exceed the limits imposed by New Jersey law. In the event that the interest
provisions of this Note shall result at any time or for any reason in an
effective rate of interest that exceeds the maximum interest rate permitted by
applicable law, then without further agreement or notice the obligation to be
fulfilled shall be automatically reduced to such limit and all


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sums received by the Holder in excess of those lawfully collectible as interest
shall be applied against the principal of this Note immediately upon the
Holder's receipt thereof, with the same force and effect as though the Company
had specifically designated such extra sums to be so applied to principal and
the Holder had agreed to accept such extra payment(s) as a premium-free
prepayment or prepayments.

      6. SECURED NATURE OF NOTE. This Note is secured by all of the property of
the Company as set forth on Exhibit A to the Security Agreement (the "Security
Agreement") of dated the date hereof between the Company and the Holder. Without
limiting the foregoing, the Company shall make, execute, acknowledge, deliver
and file such documents and instruments, including, without limitation, a
financing statement on form UCC-1 as may, in the Holder's reasonable judgment,
be necessary to effectuate, complete or perfect, the security interest of the
Holder in the Pledged Property (as defined in the Security Agreement).

      7. CANCELLATION OF NOTE. Upon the repayment by the Company of all of its
obligations hereunder to the Holder, including, without limitation, the face
amount of this Note, plus accrued but unpaid interest, the indebtedness
evidenced hereby shall be deemed canceled and paid in full. Except as otherwise
required by law or by the provisions of this Note, payments received by the
Holder hereunder shall be applied first against expenses and indemnities, next
against interest accrued on this Note, and next in reduction of the outstanding
principal balance of this Note.

      8. SEVERABILITY. If any provision of this Note is, for any reason, invalid
or unenforceable, the remaining provisions of this Note will nevertheless be
valid and enforceable and will remain in full force and effect. Any provision of
this Note that is held invalid or unenforceable by a court of competent
jurisdiction will be deemed modified to the extent necessary to make it valid
and enforceable and as so modified will remain in full force and effect.

      9. AMENDMENT AND WAIVER. This Note may be amended, or any provision of
this Note may be waived, provided that any such amendment or waiver will be
binding on a party hereto only if such amendment or waiver is set forth in a
writing executed by the parties hereto. The waiver by any such party hereto of a
breach of any provision of this Note shall not operate or be construed as a
waiver of any other breach.

      10. SUCCESSORS. Except as otherwise provided herein, this Note shall bind
and inure to the benefit of and be enforceable by the parties hereto and their
permitted successors and assigns.

      11. ASSIGNMENT. This Note shall not be directly or indirectly assignable
or delegable by the Company. The Holder may assign this Note as long as such
assignment complies with the Securities Act of 1933, as amended.



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      12. NO STRICT CONSTRUCTION. The language used in this Note will be deemed
to be the language chosen by the parties hereto to express their mutual intent,
and no rule of strict construction will be applied against any party.

      13. FURTHER ASSURANCES. Each party hereto will execute all documents and
take such other actions as the other party may reasonably request in order to
consummate the transactions provided for herein and to accomplish the purposes
of this Note.

      14. NOTICES, CONSENTS, ETC. Any notices, consents, waivers or other
communications required or permitted to be given under the terms hereof must be
in writing and will be deemed to have been delivered: (i) upon receipt, when
delivered personally; (ii) upon receipt, when sent by facsimile (provided
confirmation of transmission is mechanically or electronically generated and
kept on file by the sending party); or (iii) one (1) trading day after deposit
with a nationally recognized overnight delivery service, in each case properly
addressed to the party to receive the same. The addresses and facsimile numbers
for such communications shall be:

If to Company:                       MobilePro Corp.
                                     30 West Gude Drive  - Suite 480
                                     Rockville, MD 20850
                                     Attention:          Jay O. Wright
                                     Telephone:        (301) 524-4759
                                     Facsimile:          (301) 315-9027

With Copy to:                        Schiff Hardin & Waite
                                     1101 Connecticut Avenue, N.W. - Suite 600
                                     Washington, D.C., 20036
                                     Attention:        Ernest M. Stern, Esq.
                                     Telephone:        (202) 778-6461
                                     Facsimile:        (202) 778-6460

If to the Company:                   Cornell Capital Partners, L.P.
                                     101 Hudson Street, Suite 3606
                                     Jersey City, NJ 07302
                                     Attention:     Mark A. Angelo
                                     Telephone:   (201) 324-1619
                                     Facsimile:    (201) 324-1447

or at such other address and/or facsimile number and/or to the attention of such
other person as the recipient party has specified by written notice given to
each other party three (3) trading days prior to the effectiveness of such
change. Written confirmation of receipt (A) given by the recipient of such
notice, consent, waiver or other communication, (B) mechanically or
electronically generated by the sender's facsimile machine containing the time,
date, recipient facsimile number and an image of the first page of such
transmission


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or (C) provided by a nationally recognized overnight delivery service, shall be
rebuttable evidence of personal service, receipt by facsimile or receipt from a
nationally recognized overnight delivery service in accordance with clause (i),
(ii) or (iii) above, respectively.

      15. REMEDIES, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The
Holder's remedies provided in this Note shall be cumulative and in addition to
all other remedies available to the Holder under this Note, at law or in equity
(including a decree of specific performance and/or other injunctive relief), no
remedy of the Holder contained herein shall be deemed a waiver of compliance
with the provisions giving rise to such remedy and nothing herein shall limit
the Holder's right to pursue actual damages for any failure by the Company to
comply with the terms of this Note. Every right and remedy of the Holder under
any document executed in connection with this transaction may be exercised from
time to time and as often as may be deemed expedient by the Holder. The Company
acknowledges that a breach by it of its obligations hereunder will cause
irreparable harm to the Holder and that the remedy at law for any such breach
may be inadequate. The Company therefore agrees that, in the event of any such
breach or threatened breach, the Holder shall be entitled, in addition to all
other available remedies, to an injunction restraining any breach, and specific
performance without the necessity of showing economic loss and without any bond
or other security being required.

      16. GOVERNING LAW; JURISDICTION. All questions concerning the
construction, validity, enforcement and interpretation of this Agreement shall
be governed by the internal laws of the State of New Jersey, without giving
effect to any choice of law or conflict of law provision or rule (whether of the
State of New Jersey or any other jurisdictions) that would cause the application
of the laws of any jurisdictions other than the State of New Jersey. Each party
hereby irrevocably submits to the exclusive jurisdiction of the state and
federal courts sitting in Essex County, New Jersey, for the adjudication of any
dispute hereunder or in connection herewith or therewith, or with any
transaction contemplated hereby or discussed herein, and hereby irrevocably
waives, and agrees not to assert in any suit, action or proceeding, any claim
that it is not personally subject to the jurisdiction of any such court, that
such suit, action or proceeding is brought in an inconvenient forum or that the
venue of such suit, action or proceeding is improper. Each party hereby
irrevocably waives personal service of process and consents to process being
served in any such suit, action or proceeding by mailing a copy thereof to such
party at the address for such notices to it under this Agreement and agrees that
such service shall constitute good and sufficient service of process and notice
thereof. Nothing contained herein shall be deemed to limit in any way any right
to serve process in any manner permitted by law.

      17. NO INCONSISTENT AGREEMENTS. None of the parties hereto will hereafter
enter into any agreement, which is inconsistent with the rights granted to the
parties in this Note.

      18. THIRD PARTIES. Nothing herein expressed or implied is intended or
shall be construed to confer upon or give to any person or entity, other than
the parties to this Note and their respective permitted successor and assigns,
any rights or remedies under or by reason of this Note.



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      19. WAIVER OF JURY TRIAL. AS A MATERIAL INDUCEMENT FOR THE HOLDER TO LOAN
TO THE COMPANY THE MONIES HEREUNDER, THE COMPANY HEREBY WAIVES ANY RIGHT TO
TRIAL BY JURY IN ANY LEGAL PROCEEDING RELATED IN ANY WAY TO THIS NOTE AND/OR ANY
AND ALL OF THE OTHER DOCUMENTS ASSOCIATED WITH THIS TRANSACTION.

      20. ENTIRE AGREEMENT. This Note (including the recitals hereto) sets forth
the entire understanding of the parties with respect to the subject matter
hereof, and shall not be modified or affected by any offer, proposal, statement
or representation, oral or written, made by or for any party in connection with
the negotiation of the terms hereof, and may be modified only by instruments
signed by all of the parties hereto.

IN WITNESS WHEREOF, this Note is executed by the undersigned as of the date
hereof.

                       [SIGNATURE BLOCK ON FOLLOWING PAGE]


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                                           CORNELL CAPITAL PARTNERS, LP

                                           By: Yorkville Advisors, LLC
                                           Its: General Partner

                                           By: ______________________________
                                           Name:  Mark Angelo
                                           Its:      Portfolio Manager


                                           MOBILEPRO CORP.

                                           By: _____________________________
                                           Name:  Kurt Gordon
                                           Title:   Chief Financial Officer


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