Document:

Exhibit 10.59

                               MOTIENT CORPORATION
                          REGISTRATION RIGHTS AGREEMENT

         This REGISTRATION RIGHTS AGREEMENT (this "Agreement") is made as of
February 9, 2005 by and among MOTIENT CORPORATION, a Delaware corporation, (the
"Company"), the Telcom Stockholders (defined below), Spectrum (defined below)
and Columbia (defined below) (each such stockholder, individually, an "Investor"
and, collectively, the "Investors").

         WHEREAS, the Company has agreed to issue 8,187,804 shares (the "Telcom
Shares") of its common stock, $0.01 par value per share (including any
securities into which or for which such shares may be exchanged for, or
converted into, pursuant to any stock dividend, stock split, stock combination,
recapitalization, reclassification, reorganization or other similar event, the
"Common Stock"), to the Telcom Stockholders in connection with the merger of
Telcom Satellite Ventures Inc. ("Telcom I") and Telcom Satellite Ventures II
Inc. ("Telcom II") with and into MVH Holdings Inc. ("MVH"), a Delaware
corporation and wholly-owned subsidiary of the Company pursuant to the Agreement
and Plan of Merger dated February 9, 2005 by and between the Company, Telcom I,
Telcom II and MVH (the "Merger Agreement"); and

         WHEREAS, the Company has also agreed to acquire, through MVH, shares of
common stock of several different corporations pursuant to certain Stock
Purchase Agreements (defined below), pursuant to which the Company will issue an
aggregate of 2,706,992 shares of Common Stock to Columbia (the "Columbia
Shares") and 1,809,995 shares of Common Stock to Spectrum (the "Spectrum Shares"
and, together with the Telcom Shares and Columbia Shares, the "Shares"); and

         WHEREAS, the terms of the Merger Agreement and the Stock Purchase
Agreements provide that it shall be a condition precedent to the closing of the
transactions contemplated thereunder, for the Company and the Investors to
execute and deliver this Agreement.

         NOW, THEREFORE, in consideration of the premises and mutual covenants
contained herein, the parties hereto hereby agree as follows:

         1. DEFINITIONS. The following terms shall have the meanings provided
therefor below or elsewhere in this Agreement as described below:

         "Additional Consideration Shares" means shares of Common Stock issuable
as Additional Merger Consideration (as such term is defined in Section 2.1(c) of
the Merger Agreement) or shares of Common Stock issuable as Additional
Consideration (as such term is defined in Section 4.4 of each Stock Purchase
Agreement).

         "Affiliates" means any Person that, directly or indirectly, through one
or more intermediaries, controls, is controlled by, or is under common control
with, a Person, as such terms are used and construed under Rule 144.

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         "Board" means the board of directors of the Company.

         "Business Day" means any day except Saturday, Sunday and any day which
shall be a federal legal holiday or a day on which banking institutions in the
State of Delaware are authorized or required by law or other governmental action
to close.

         "Closing Date" shall mean the date hereof.

         "Columbia" shall mean Columbia Capital Equity Partners III (QP), L.P.,
Columbia Capital Equity Partners III (AI), L.P., Columbia Capital Equity
Partners III (CAYMAN), L.P., Columbia Capital Investors III, LLC and Columbia
Capital Employee Investors III, L.L.C.

         "Exchange Act" means the Securities Exchange Act of 1934, as amended,
and all of the rules and regulations promulgated thereunder.

         "Person" (whether or not capitalized) means an individual, partnership,
limited liability company, corporation, association, trust, joint venture,
unincorporated organization, and any government, governmental department or
agency or political subdivision thereof.

         "Prospectus" means the prospectus included in any Registration
Statement (including, without limitation, a prospectus that includes any
information previously omitted from a prospectus filed as part of an effective
Registration Statement in reliance upon Rule 430A promulgated under the
Securities Act), as amended or supplemented by any prospectus supplement, with
respect to the terms of the offering of any portion of the Registrable Shares
covered by such Registration Statement, and all other amendments and supplements
to the Prospectus, including post-effective amendments, and all material
incorporated by reference in such Prospectus.

         "Registrable Shares" means, at the relevant time of reference thereto,
(i) the Shares, (ii) the Warrant Shares (including any shares of capital stock
that may be issued in respect thereof pursuant to a stock split, stock dividend,
recombination, reclassification or the like) and (iii) the Additional
Consideration Shares (except for purposes of Section 2), provided, however, that
the term "Registrable Shares" shall not include any of the Shares or Warrant
Shares that are actually sold pursuant to a registration statement that has been
declared effective under the Securities Act by the SEC.

         "Registration Statement" means the Mandatory S-1 Registration Statement
and any additional registration statements contemplated by this Agreement,
including (in each case) the Prospectus, amendments and supplements to such
registration statement or Prospectus, including pre- and post-effective
amendments, all exhibits thereto, and all material incorporated by reference in
such registration statement or Prospectus.

         "Rule 144" means Rule 144 promulgated under the Securities Act and any
successor or substitute rule, law or provision.

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         "SEC" means the Securities and Exchange Commission.

         "Securities Act" means the Securities Act of 1933, as amended, and all
of the rules and regulations promulgated thereunder.

         "Spectrum" means Spectrum Equity Investors IV, L.P., Spectrum IV
Investment Managers' Fund, L.P. and Spectrum Equity Investors Parallel IV, L.P.

         "Stock Purchase Agreements" means the Stock Purchase Agreements dated
as of the date hereof by and among the Company, MVH Holdings Inc. and each of
the Spectrum entities and the Columbia entities.

         "Telcom Stockholders" means Dr. Rajendra Singh, Neera Singh, The Hersh
Raj Singh Education Trust and The Samir Raj Singh Education Trust.

         "Warrants" means the warrants to purchase Common Stock, dated as of the
date hereof, issued by the Company to the Investors pursuant to the Merger
Agreement and pursuant to the Stock Purchase Agreements, a form of which is
attached as Exhibit A to the Merger Agreement and each Stock Purchase Agreement.

         "Warrant Shares" means the shares of Common Stock issued or issuable
upon the exercise of the Warrants.

         2. MANDATORY FORM S-1 REGISTRATION.

              (a) The Company will use its reasonable best efforts to prepare
and file with the SEC, on or before the date that is three (3) Business Days
following the Closing Date, a pre-effective amendment to the Company's
Registration Statement on Form S-1 (Reg. No. 333- 121862), in substantially the
form provided to the Investors, for the purpose of registering under the
Securities Act all of the Registrable Shares for resale by, and for the account
of, each Investor as an initial selling stockholder thereunder (the "Mandatory
S-1 Registration Statement"). The Mandatory S-1 Registration Statement shall
permit the Investors to offer and sell, on a delayed or continuous basis
pursuant to Rule 415 under the Securities Act, any or all of the Registrable
Shares. The Company agrees to use its reasonable best efforts to cause the
Mandatory S-1 Registration Statement to be declared effective as soon as
practicable after the date of such filing (including filing with the SEC, within
three (3) Business Days of the date that the Company is notified (orally or in
writing, whichever is earlier) by the SEC that the Mandatory S-1 Registration
Statement will not be "reviewed" or will not be subject to further review, a
request for acceleration of effectiveness in accordance with Rule 461
promulgated under the Securities Act (an "Acceleration Request"), which request
shall request an effective date that is within three (3) Business Days of the
date of such request). The Company shall notify each Investor in writing
promptly (and in any event within one (1) Business Day) after the Company's
submission of an Acceleration Request to the SEC. The Company shall use its
reasonable best efforts to keep the Mandatory S-1 Registration Statement
continuously effective (including through the filing of any required
post-effective amendments) until the earliest to occur of: (i) the date on which
the Investors may sell all Registrable Shares pursuant to Rule 144 without being

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subject to the volume restrictions of such rule, (ii) the date after which all
of the Registrable Shares registered thereunder shall have been sold, or (iii)
the second (2nd) anniversary of the Closing Date; provided, that in any case
such date shall be extended by the amount of time of any Suspension Period (as
defined below). Thereafter, the Company shall be entitled to withdraw the
Mandatory S-1 Registration Statement and, upon such withdrawal, the Investors
shall have no further right to offer or sell any of the Registrable Shares
pursuant to the Mandatory S-1 Registration Statement (or any prospectus relating
thereto). For purposes of the Company's reasonable best efforts obligations in
this Section 2(a), the Company shall use its reasonable best efforts to avoid
taking any action or failing to take any action, that could reasonably lead to a
material delay in the effectiveness of the Mandatory S-1 Registration Statement,
such as filing other registration statements, engaging in business transactions
that could have such an effect, and failing to complete and file with the SEC as
required its audited year end 2004 financial statements.

              (b) Notwithstanding anything in this Section 2 to the contrary, if
the Company shall furnish to the Investors a certificate signed by the President
or Chief Executive Officer of the Company, or the person performing such
functions, stating that the Board has made the good faith determination (i) that
the continued use by the Investors of the Mandatory S-1 Registration Statement
for purposes of effecting offers or sales of Registrable Shares pursuant hereto
would require, under the Securities Act and the rules and regulations
promulgated thereunder, premature disclosure in the Mandatory S-1 Registration
Statement (or the Prospectus relating thereto) of material, nonpublic
information concerning the Company, its business or prospects or any proposed
material transaction involving the Company, (ii) that such premature disclosure
would be materially adverse to the Company, its business or prospects or any
such proposed material transaction or would not be in the best interests of the
Company and (iii) that it is therefore essential to suspend the use by the
Investors, of the Mandatory S-1 Registration Statement (and the Prospectus
relating thereto), then the right of the Investors to use the Mandatory S-1
Registration Statement (and the Prospectus relating thereto) for purposes of
effecting offers or sales of Registrable Shares pursuant thereto shall be
suspended for a period (the "Suspension Period") not greater than fifteen (15)
consecutive Business Days during any consecutive twelve (12) month period.
During the Suspension Period, the Investors shall not offer or sell any
Registrable Shares pursuant to or in reliance upon the Mandatory S-1
Registration Statement (or the Prospectus relating thereto). The Company agrees
that, as promptly as possible, but in no event later than one (1) Business Day,
after the consummation, abandonment or public disclosure of the event or
transaction that caused the Company to suspend the use of the Mandatory S-1
Registration Statement (and the Prospectus relating thereto) pursuant to this
Section 2(b), the Company will as promptly as possible lift any suspension,
provide the Investors with revised Prospectuses, if required, and will notify
the Investors of their ability to effect offers or sales of Registrable Shares
pursuant to or in reliance upon the Mandatory S-1 Registration Statement.

              (c) It shall be a condition precedent to the obligations of the
Company to register Registrable Shares for the account of an Investor pursuant
to this Section 2 or Section 3 that such Investor furnish to the Company such
information regarding itself, the Registrable Securities held by it, and the
method of disposition of such securities as shall be required to effect the
registration of such Investor's Registrable Securities.

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              (d) Notwithstanding anything in this Agreement to the contrary,
the Investors' sole remedy at law (but without in any way or form limiting the
availability of equitable remedies) for the failure of the Company to file the
Mandatory S-1 Registration Statement within three (3) Business Days after the
date hereof or for the failure of the Company to make effective the Mandatory
S-1 Registration Statement as soon as practicable after the date the Mandatory
S-1 Registration Statement is filed, shall be the vesting of the Warrants as
provided for therein.

         3. PIGGYBACK REGISTRATION.

              (a) If at any time any Registrable Shares are not able to be
resold pursuant to an effective Registration Statement, including prior to the
date the Mandatory S-1 Registration Statement is declared effective, and the
Company proposes to register any of its Common Stock under the Securities Act,
whether as a result of an offering for its own account or the account of others
(but excluding any registrations to be effected on Forms S-4 or S-8 or other
applicable successor Forms), the Company shall, each such time, give to the
Investors twenty (20) days' prior written notice of its intent to do so, and
such notice shall describe the proposed registration and shall offer such
Investors the opportunity to register such number of Registrable Shares as each
such Investor may request. Upon the written request of any Investor given to the
Company within fifteen (15) days after the receipt of any such notice by the
Company, the Company shall include in such Registration Statement all or part of
the Registrable Shares of such Investor, to the extent requested to be
registered and subject to subsection (b) below.

              (b) If a registration pursuant to Section 3 hereof involves an
underwritten offering and the managing underwriter shall advise the Company in
writing that, in its opinion, the number of shares of Common Stock requested by
the Investors to be included in such registration is likely to affect materially
and adversely the success of the offering or the price that would be received
for any shares of Common Stock offered in such offering, then, notwithstanding
anything in this Section 3 to the contrary, the Company shall only be required
to include in such registration, to the extent of the number of shares of Common
Stock which the Company is so advised can be sold in such offering, (i) first,
the number of shares of Common Stock requested to be included in such
registration for the account of any stockholders of the Company (including the
Investors), pro rata among such stockholders on the basis of the number of
shares of Common Stock that each of them has requested to be included in such
registration, and (ii) second, any shares of Common Stock proposed to be
included in such registration for the account of the Company.

              (c) In connection with any offering involving an underwriting of
shares, the Company shall not be required under this Section 3 or otherwise to
include the Registrable Shares of any Investor therein unless such Investor
accepts and agrees to the terms of the underwriting, which shall be reasonable
and customary, as agreed upon between the Company and the underwriters selected
by the Company.

         4. OBLIGATIONS OF THE COMPANY. In connection with the Company's
registration obligations hereunder, the Company shall, as expeditiously as
practicable:

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              (a) (i) furnish to each Investor copies of all documents filed
with the SEC not less than two (2) Business Days prior to their being filed with
the SEC, (ii) use commercially reasonable efforts to cause its officers and
directors, counsel and certified public accountants to respond to such inquiries
as shall be necessary, in the reasonable opinion of such Investor, to conduct a
reasonable investigation within the meaning of the Securities Act, and (iii)
notify the Investors of any stop order issued or threatened by the SEC and use
best efforts to prevent the entry of such stop order or to remove it if entered.

              (b) (i) prepare and file with the SEC such amendments and
supplements, including post-effective amendments, to each Registration Statement
and the Prospectus used in connection therewith as may be necessary to comply
with the Securities Act and to keep the Registration Statement continuously
effective as required herein, and prepare and file with the SEC such additional
Registration Statements or amendments and supplements, including post-effective
amendments, as necessary to register for resale under the Securities Act all of
the Registrable Shares (including naming any permitted transferees of
Registrable Shares as selling stockholders in any such Registration Statement)
as required herein; (ii) cause any related Prospectus to be amended or
supplemented by any required Prospectus supplement, and as so supplemented or
amended to be filed pursuant to Rule 424; (iii) respond as promptly as possible
through its reasonable best efforts to any comments received from the SEC with
respect to each Registration Statement or any amendment thereto and as promptly
as possible through its reasonable best efforts provide the Investors true and
complete copies of all correspondence from and to the SEC relating to the
Registration Statement (other than correspondence containing material nonpublic
information); and (iv) comply with the provisions of the Securities Act and the
Exchange Act with respect to the disposition of all Registrable Shares covered
by such Registration Statement as so amended or in such Prospectus as so
supplemented.

              (c) Notify the Investors and legal counsel to the Investors
("Investors' Counsel") as promptly as possible:

                   (i) when the SEC notifies the Company whether there will be a
"review" of a Registration Statement and whenever the SEC comments in writing on
such Registration Statement; and (ii) when a Registration Statement, or any
post-effective amendment or supplement thereto, has become effective, and after
the effectiveness thereof: (A) of any request by the SEC or any other federal or
state governmental authority for amendments or supplements to the Registration
Statement or Prospectus or for additional information; (B) of the issuance by
the SEC or any state securities commission of any stop order suspending the
effectiveness of the Registration Statement covering any or all of the
Registrable Shares or the initiation of any proceedings for that purpose; and
(C) of the receipt by the Company of any notification with respect to the
suspension of the qualification or exemption from qualification of any of the
Registrable Shares for sale in any jurisdiction, or the initiation or
threatening of any proceeding for such purpose. Without limitation of any
remedies to which the Investors may be entitled under this Agreement, if any of
the events described in Section 4(c)(ii)(A), 4(c)(ii)(B), and 4(c)(ii)(C) occur,
the Company shall use best efforts to respond to and correct the event.

              (d) Notify the Investors and their counsel as promptly as possible
of the happening of any event as a result of which the Prospectus included in or

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relating to a Registration Statement contains an untrue statement of a material
fact or omits any fact necessary to make the statements therein not misleading;
and, thereafter, the Company will as promptly as possible prepare (and, when
completed, give notice to each Investor) a supplement or amendment to such
Prospectus so that, as thereafter delivered to the purchasers of such
Registrable Shares, such Prospectus will not contain an untrue statement of a
material fact or omit to state any fact necessary to make the statements therein
not misleading; provided that upon such notification by the Company, the
Investors will not offer or sell Registrable Shares pursuant to such Prospectus
until the Company has notified the Investors that it has prepared a supplement
or amendment to such Prospectus and delivered copies of such supplement or
amendment to the Investors (it being understood and agreed by the Company that
the foregoing proviso shall in no way diminish or otherwise impair the Company's
obligation to as promptly as possible prepare a Prospectus amendment or
supplement as above provided in this Section 4(d) and deliver copies of same as
above provided in Section 4(h) hereof), and it being further understood that, in
the case of the Mandatory S-1 Registration Statement, any such period during
which the Investors are restricted from offering or selling Registrable Shares
shall constitute a Suspension Period.

              (e) Upon the occurrence of any event described in Section 4(d)
hereof, as promptly as possible, prepare a supplement or amendment, including a
post-effective amendment, to the Registration Statement or a supplement to the
related Prospectus or any document incorporated or deemed to be incorporated
therein by reference, and file any other required document so that, as
thereafter delivered, neither the Registration Statement nor such Prospectus
will contain an untrue statement of a material fact or omit to state a material
fact required to be stated therein or necessary to make the statements therein,
in light of the circumstances under which they are made, not misleading.

              (f) Use best efforts to avoid the issuance of or, if issued,
obtain the withdrawal of, (i) any order suspending the effectiveness of any
Registration Statement or (ii) any suspension of the qualification (or exemption
from qualification) of any of the Registrable Shares for sale in any
jurisdiction, as promptly as possible (it being understood that, in the case of
the Mandatory S-1 Registration Statement, any period during which the
effectiveness of the Mandatory S-1 Registration Statement or the qualification
of any Registrable Shares is suspended shall constitute a Suspension Period).

              (g) Furnish to the Investors and their counsel, without charge, at
least one conformed copy of each Registration Statement and each amendment
thereto, and all exhibits to the extent requested by such Investor or their
counsel (including those previously furnished or incorporated by reference) as
promptly as possible after the filing of such documents with the SEC.

              (h) As promptly as possible furnish to each selling Investor,
without charge, such number of copies of a Prospectus, including a preliminary
Prospectus, in conformity with the requirements of the Securities Act, and such
other documents (including, without limitation, Prospectus amendments and
supplements) as each such selling Investor may reasonably request in order to
facilitate the disposition of the Registrable Shares covered by such Prospectus
and any amendment or supplement thereto. The Company hereby consents to the use
of such Prospectus and each amendment or supplement thereto by each of the
selling Investors in connection with the offering and sale of the Registrable
Shares covered by such Prospectus and any amendment or supplement thereto to the
extent permitted by federal and state securities laws and regulations.

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              (i) Use best efforts to register and qualify (or obtain an
exemption from such registration and qualification) the Registrable Shares under
such other securities or blue sky laws of the states of residence of each
Investor and such other jurisdictions as each Investor shall reasonably request,
to keep such registration or qualification (or exemption therefrom) effective
during the periods each Registration Statement is effective, and do any and all
other acts or things which may be reasonably necessary or advisable to enable
each Investor to consummate the public sale or other disposition of Registrable
Shares in such jurisdiction, provided that the Company shall not be required in
connection therewith or as a condition thereto to qualify to do business or to
file a general consent to service of process in any such states or jurisdictions
where it is not then qualified or subject to process.

              (j) Cooperate with the Investors to facilitate the timely
preparation and delivery of certificates representing the Registrable Shares to
be delivered to a transferee pursuant to a Registration Statement, which
certificates shall be free, to the extent permitted by the Merger Agreement or
the Purchase Agreement, as applicable, and applicable law, of all restrictive
legends, and to enable such Registrable Shares to be in such denominations and
registered in such names as such Investors may request.

              (k) Cooperate with any reasonable due diligence investigation
undertaken by the Investors, any managing underwriter participating in any
disposition pursuant to a Registration Statement, Investors' Counsel and any
attorney, accountant or other agent retained by Investors or any managing
underwriter, in connection with the sale of the Registrable Shares, including,
without limitation, making available any documents and information; provided,
however, that the Company will not deliver or make available to any Investor
material, nonpublic information unless such Investor specifically requests and
consents in advance in writing to receive such material, nonpublic information
and, if requested by the Company, such Investor agrees in writing to treat such
information as confidential.

              (l) At the request of a permitted transferee, the Company shall
amend any Registration Statement to include such transferee as a selling
stockholder in such Registration Statement.

              (m) Comply with all applicable rules and regulations of the SEC in
all material respects.

         5. EXPENSES OF REGISTRATION. The Company shall pay for all expenses
incurred in connection with a registration pursuant to this Agreement and
compliance with Section 4 of this Agreement, including without limitation (i)
all registration, filing and qualification fees and expenses (including without
limitation those related to filings with the SEC, The NASDAQ Stock Market, or
any national securities exchange upon which the Company's securities are listed
and in connection with applicable state securities or blue sky laws), (ii) all
printing expenses, (iii) all messenger, telephone and delivery expenses incurred
by the Company, (iv) all fees and disbursements of counsel for the Company and
Investors' Counsel, and (v) all fees and expenses of all other Persons retained
by the Company in connection with the consummation of the transactions
contemplated by this Agreement.

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         6. DELAY OF REGISTRATION. Subject to Section 11(d) hereof, the
Investors and the Company (other than with respect to Section 4(d) hereof) shall
not take any action to restrain, enjoin or otherwise delay any registration as
the result of any controversy which might arise with respect to the
interpretation or implementation of this Agreement.

         7. INDEMNIFICATION. In the event that any Registrable Shares of the
Investors are included in a Registration Statement pursuant to this Agreement:

              (a) To the fullest extent permitted by law, the Company will
indemnify and hold harmless each Investor and each officer, director, fiduciary,
agent, investment advisor, employee, member (or other equity holder), general
partner and limited partner (and Affiliates thereof) of such Investor, each
broker, underwriter or other person acting on behalf of such Investor and each
person, if any, who controls such Investor within the meaning of the Securities
Act, against any losses, claims, damages or liabilities, joint or several, (the
"Losses") to which they may become subject under the Securities Act or
otherwise, insofar as such Losses (or actions in respect thereof) arise out of
or relate to any untrue or alleged untrue statement of any material fact
contained in the Registration Statement, or arise out of or relate to the
omission or alleged omission to state therein a material fact required to be
stated therein, or necessary to make the statements therein not misleading, or
any violation by the Company of the Securities Act or state securities or blue
sky laws applicable to the Company and leading to action or inaction required of
the Company in connection with such registration or qualification under such
Securities Act or state securities or blue sky laws; and, subject to the
provisions of Section 7(c) hereof, the Company will reimburse on demand such
Investor, such broker or other person acting on behalf of such Investor or such
officer, director, fiduciary, employee, member (or other equity holder), general
partner, limited partner, Affiliate or controlling person for any legal or other
expenses reasonably incurred by any of them in connection with investigating or
defending any such loss, claim, damage, liability or action; provided, however,
that the indemnity agreement contained in this Section 7(a) shall not apply to
amounts paid in settlement of any such Losses if such settlement is effected
without the consent of the Company (which consent shall not be unreasonably
withheld), nor shall the Company be liable in any such case for any such loss,
damage, liability or action to the extent that it solely arises out of or is
based upon an untrue statement of any material fact contained in the
Registration Statement or omission to state therein a material fact required to
be stated therein or necessary to make the statements therein not misleading, in
each case to the extent that such untrue statement or alleged untrue statement
or omission or alleged omission was made in the Registration Statement, in
reliance upon and in conformity with written information furnished by such
Investor expressly for use in connection with such Registration Statement.

              (b) To the fullest extent permitted by law, each Investor,
severally (as to itself) and not jointly, will indemnify and hold harmless the
Company, each of its directors, each of its officers who have signed the
Registration Statement, each person, if any, who controls the Company within the

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meaning of the Securities Act, and all other Investors against any Losses to
which the Company or any such director, officer or controlling person or other
Investor may become subject to, under the Securities Act or otherwise, insofar
as such Losses (or actions in respect thereto) solely arise out of or are based
upon any untrue statement of any material fact contained in the Registration
Statement, or solely arise out of or relate to the omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading, in each case to the extent that such untrue statement or
alleged untrue statement or omission or alleged omission was made in the
Registration Statement in reliance upon and in conformity with written
information furnished by such Investor expressly for use in connection with such
Registration Statement; and, subject to the provisions of Section 7(d) hereof,
such Investor will reimburse on demand any legal or other expenses reasonably
incurred by the Company or any such director, officer, controlling person, or
other Investor in connection with investigating or defending any such Losses,
provided, however, that the maximum aggregate amount of liability of such
Investor under this Section 7 shall be limited to the proceeds (net of
underwriting discounts and commissions, if any) actually received by such
Investor from the sale of Registrable Shares covered by such Registration
Statement; and provided, further, however, that the indemnity agreement
contained in this Section 7(b) or 7(e)shall not apply to amounts paid in
settlement of any such Losses if such settlement is effected without the consent
of such Investor against which the request for indemnity is being made (which
consent shall not be unreasonably withheld).

              (c) As promptly as possible after receipt by an indemnified party
under this Section 7 of notice of the threat, assertion or commencement of any
action, such indemnified party will, if a claim in respect thereof is to be made
against any indemnifying party under this Section 7, notify the indemnifying
party in writing of the commencement thereof and the indemnifying party shall
have the right to participate in and, to the extent the indemnifying party
desires, jointly with any other indemnifying party similarly noticed, to assume
at its expense the defense thereof with counsel mutually satisfactory to the
parties; provided, however, that, the failure to notify an indemnifying party
promptly of the threat, assertion or commencement of any such action shall not
relieve such indemnifying party of any liability to the indemnified party under
this Section 7 except (and only) to the extent that it shall be finally
determined by a court of competent jurisdiction (which determination is not
subject to appeal or further review) that such failure shall have proximately
and materially adversely prejudiced the indemnifying party.

              (d) If any indemnified party shall have reasonably concluded that
there may be one or more legal defenses available to such indemnified party
which are different from or additional to those available to the indemnifying
party, or that such claim or litigation involves or could have an effect upon
matters beyond the scope of the indemnity agreement provided in this Section 7,
the indemnifying party shall not have the right to assume the defense of such
action on behalf of such indemnified party, and such indemnifying party shall
reimburse such indemnified party and any person controlling such indemnified
party for the fees and expenses of counsel retained by the indemnified party
which are reasonably related to the matters covered by the indemnity agreement
provided in this Section 7. Subject to the foregoing, an indemnified party shall
have the right to employ separate counsel in any such action and to participate
in the defense thereof but the fees and expenses of such counsel shall not be at
the expense of the Company.

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              (e) If the indemnification provided for in this Section 7 from the
indemnifying party is applicable by its terms but unavailable to an indemnified
party hereunder in respect of any Losses, then the indemnifying party, in lieu
of indemnifying such indemnified party, shall, subject to the maximum aggregate
liability of any Investor as set forth in Section 7(b), contribute to the amount
paid or payable by such indemnified party as a result of such losses, claims,
damages, liabilities or expenses in such proportion as is appropriate to reflect
the relative fault of the indemnifying party and indemnified party in connection
with the actions which resulted in such losses, claims, damages, liabilities or
expenses, as well as any other relevant equitable considerations. The relative
faults of such indemnifying party and indemnified party shall be determined by
reference to, among other things, whether any action in question, including any
untrue or alleged untrue statement of a material fact or omission or alleged
omission to state a material fact, has been made by, or relates to information
supplied by, such indemnifying party or indemnified party, and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such action. The amount paid or payable by a party as a result of the
losses, claims, damages, liabilities and expenses referred to above shall be
deemed to include, subject to the limitations set forth in Sections 7(a), 7(b)
7(c) and 7(d), any legal or other fees, charges or expenses reasonably incurred
by such party in connection with any investigation or proceeding. No person
guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the Securities Act) shall be entitled to contribution from any person. The
parties hereto agree that it would not be just and equitable if contribution
pursuant to this Section 7(e) were determined by pro rata allocation or by any
other method of allocation which does not take account of the equitable
considerations referred to in the immediately preceding paragraph.

              (f) The indemnity and contribution agreements contained in this
Section are in addition to any liability that any indemnifying party may have to
any indemnified party.

         8. REPORTS UNDER THE EXCHANGE ACT. With a view to making available to
the Investors the benefits of Rule 144 and any other rule or regulation of the
SEC that may at any time permit the Investors to sell the Registrable Shares to
the public without registration, the Company agrees to use best efforts to: (i)
make and keep public information available, as those terms are understood and
defined in Rule 144, (ii) file with the SEC in a timely manner all reports and
other documents required to be filed by an issuer of securities registered under
the Securities Act or the Exchange Act; (iii) as long as any Investor owns any
Shares or Warrant Shares, to furnish in writing upon such Investor's request a
written statement by the Company that it has complied with the reporting
requirements of Rule 144 and of the Securities Act and the Exchange Act, and to
furnish to such Investor a copy of the most recent annual and quarterly reports
of the Company, and such other reports and documents so filed by the Company as
may be reasonably requested in availing such Investor of any rule or regulation
of the SEC permitting the selling of any such Shares without registration, and
(iv) undertake any additional actions reasonably necessary to maintain the
availability of a Registration Statement, including any successor or substitute
forms, or the use of Rule 144.

         9. TRANSFER OF REGISTRATION RIGHTS. Each Investor may assign or
transfer any or all of its rights under this Agreement to any Person, provided
such assignee or transferee agrees in writing to be bound by the provisions
hereof that apply to such assigning or transferring Investor. Upon any such, and
each successive, assignment or transfer to any permitted assignee or transferee
in accordance with the terms of this Section 9, such permitted assignee or
transferee shall be deemed to be an "Investor" for all purposes of this
Agreement.

                                       11
<PAGE>

         10. ENTIRE AGREEMENT. This Agreement constitutes and contains the
entire agreement and understanding of the parties with respect to the subject
matter hereof, and it also supersedes any and all prior negotiations,
correspondence, agreements or understandings with respect to the subject matter
hereof.

         11. MISCELLANEOUS.

              (a) This Agreement, and any right, term or provision contained
herein, may not be amended, modified or terminated, and no right, term or
provision may be waived, except with the written consent of each Investor and
the Company; provided that any particular Investor (as compared to all Investors
as a group) may pursue remedies, settle disputes and otherwise enforce or waive
rights as to such Investor whether or not any of the other Investors participate
in such action, as long as such action relates only to the rights of such
Investor and does not modify or waive the rights of any of the other Investors.

              (b) This Agreement shall be governed by and construed and enforced
in accordance with the laws of the State of Delaware. This Agreement shall be
binding upon the parties hereto and their respective heirs, personal
representatives, successors and permitted assigns and transferees, provided that
the terms and conditions of Section 9 hereof are satisfied. Notwithstanding
anything in this Agreement to the contrary, if at any time any Investor
(including any successors or assigned) shall cease to own any Registrable
Shares, all of such Investor's rights under this Agreement shall immediately
terminate.

              (c) Any notices to be given pursuant to this Agreement shall be in
writing and shall be given by certified or registered mail, return receipt
request. Notices shall be deemed given when personally delivered or when mailed
to the addresses of the respective parties as set forth on Exhibit A or Schedule
1 hereto, as applicable, or to such changed address of which any party may
notify the others pursuant hereto, except that a notice of change of address
shall be deemed given when received.

              (d) The parties acknowledge and agree that in the event of any
breach of this Agreement, remedies at law will be inadequate, and each of the
parties hereto shall be entitled to specific performance of the obligations of
the other parties hereto and to such appropriate injunctive relief as may be
granted by a court of competent jurisdiction. All remedies, either under this
Agreement or by law or otherwise afforded to any of the parties, shall be
cumulative and not alternative.

              (e) This Agreement may be executed in a number of counterparts.
All such counterparts together shall constitute one Agreement, and shall be
binding on all the parties hereto notwithstanding that all such parties have not
signed the same counterpart. The parties hereto confirm that any facsimile copy
of another party's executed counterpart of this Agreement (or its signature page
thereof) will be deemed to be an executed original thereof.

                                       12
<PAGE>

              (f) Except as contemplated in Section 9 hereof, this Agreement is
intended solely for the benefit of the parties hereto and is not intended to
confer any benefits upon, or create any rights in favor of, any Person
(including, without limitation, any stockholder or debt holder of the Company)
other than the parties hereto.

              (g) If any provision of this Agreement is invalid, illegal or
unenforceable, such provision shall be ineffective to the extent, but only to
the extent of, such invalidity, illegality or unenforceability, without
invalidating the remainder of such provision or the remaining provisions of this
Agreement, unless such a construction would be unreasonable.

              (h) This Agreement shall be binding upon, and inure to the benefit
of, the parties hereto and their permitted successors and assigns.

                            [Signature Pages Follow]

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have executed this Registration
Rights Agreement as of the date and year first above written.

                                    MOTIENT CORPORATION

                                    By:    /s/ Christopher Downie
                                           -------------------------------------
                                           Christopher Downie,
                                           Executive Vice President and Chief
                                           Operating Officer

                                    INVESTORS:

                                    /s/ Dr. Rajendra Singh
                                    -----------------------------------
                                    Dr. Rajendra Singh

                                    /s/ Neera Singh
                                    -----------------------------------
                                    Neera Singh

                                    THE HERSH RAJ SINGH EDUCATION TRUST

                                    By:    /s/ Neera Singh
                                           ----------------------------

                                    Name:  ____________________________

                                    Title: ____________________________

                                    THE SAMIR RAJ SINGH EDUCATION TRUST

                                    By:    /s/ Neera Singh
                                           ----------------------------

                                    Name:  ____________________________

                                    Title: ____________________________

                                    SPECTRUM EQUITY INVESTORS IV, L.P.

                                    By:    Spectrum Equity Associates IV, L.P.,
                                           its General Partner

                                    By:    /s/ Kevin J. Maroni
                                           ----------------------------
                                    Name:  Kevin J. Maroni
                                    Title: General Partner

                [SIGNATURE PAGE TO REGISTRATION RIGHTS AGREEMENT]

<PAGE>

                                    SPECTRUM IV INVESTMENT MANAGERS' FUND, L.P.

                                    By:    /s/ Kevin J. Maroni
                                           ----------------------------
                                    Name:  Kevin J. Maroni
                                    Title: General Partner

                                    SPECTRUM EQUITY INVESTORS PARALLEL IV, L.P.

                                    By:    /s/ Kevin J. Maroni
                                           ----------------------------
                                    Name:  Kevin J. Maroni
                                    Title: General Partner

                                    COLUMBIA CAPITAL EQUITY PARTNERS III (QP),
                                    L.P.

                                    By:    Columbia Capital Equity Partners III,
                                           L.P., as General Partner

                                    By:    /s/ Donald A. Doering
                                           -----------------------------
                                    Name:  Donald A. Doering
                                    Title: Chief Financial Officer

                                    COLUMBIA CAPITAL EQUITY PARTNERS III (AI),
                                    L.P.

                                    By:    Columbia Capital Equity Partners III,
                                           L.P., as General Partner

                                    By:    /s/ Donald A. Doering
                                           -----------------------------
                                    Name:  Donald A. Doering
                                    Title: Chief Financial Officer

               [SIGNATURE PAGE TO REGISTRATION RIGHTS AGREEMENT]

<PAGE>

                                    COLUMBIA CAPITAL EQUITY PARTNERS III
                                    (CAYMAN), L.P.

                                    By:    Columbia Capital Equity Partners
                                           (Cayman) III, Ltd., as General
                                           Partner

                                    By:    /s/ Donald A. Doering
                                           ----------------------------
                                    Name:  Donald A. Doering
                                    Title: Chief Financial Officer

                                    COLUMBIA CAPITAL INVESTORS III, LLC

                                    By:    Columbia Capital Equity Partners III,
                                           L.P., as General Partner

                                    By:    /s/ Donald A. Doering
                                           ----------------------------
                                    Name:  Donald A. Doering
                                    Title: Chief Financial Officer

                                    COLUMBIA CAPITAL EMPLOYEE INVESTORS III,
                                    L.L.C.

                                    By:    Columbia Capital III, L.L.C., its
                                           Manager

                                    By:    /s/ Donald A. Doering
                                    -------------------------
                                    Name:  Donald A. Doering
                                    Title: Chief Financial Officer

               [SIGNATURE PAGE TO REGISTRATION RIGHTS AGREEMENT]

<PAGE>

                                                                       Exhibit A
                                                                       ---------

All correspondence to the Company shall be addressed as follows:

Motient Corporation 300 Knightsbridge Parkway Lincolnshire, IL 60069 Attention:
Christopher Downie, Executive Vice President and Chief Operating Officer
Telecopier: (847) 478-4810.

with copies to:

Motient Corporation 300 Knightsbridge Parkway Lincolnshire, IL 60069 Attention:
Robert Macklin, Esq. Telecopy: (847) 478-4810

                                Andrews Kurth LLP
                              450 Lexington Avenue
                               New York, NY 10017
                        Attention: Paul Silverstein, Esq.
                            Telecopy: (212) 850-2929

All correspondence to the Investors shall be addressed as set forth in Schedule
1 below

<PAGE>

                                                                      Schedule 1
                                                                      ----------
                                List of Investors

1. Correspondence to the Telcom Stockholders shall be addressed as follows:
Dr. Rajendra Singh
Neera Singh
The Hersh Raj Singh Education Trust
The Samir Raj Singh Education Trust,                   with a copy to:
-------------------------------------------------------------------------------
c/o Telcom Ventures, L.L.C.              Steel Hector & Davis LLP
201 N. Union Street, Suite 360           200 South Biscayne Blvd., 41st Floor
Alexandria, VA  22314                    Miami, Florida 33131-2398
Telecopy: 703-519-2181                   Telecopy: (305) 577-7001
Attention:                               Attention: Serge Martin
--------------------------------------------------------------------------------

2. Correspondence to Columbia shall be addressed as follows:
Columbia Capital Equity Partners III (QP), L.P.
Columbia Capital Equity Partners III (AI), L.P.
Columbia Capital Equity Partners III (CAYMAN), L.P.
Columbia Capital Investors III, LLC
Columbia Capital Employee Investors III, L.L.C.,       with a copy to:
--------------------------------------------------------------------------------
201 North Union Street                   Edwards & Angell, LLP
Suite 300                                101 Federal Street
Alexandria, Virginia 22314               Boston, MA 02110 USA
Telecopy: (703) 519-3904                 Telecopy: (617) 439-4170
Attention James B. Fleming               Attention: Stephen O. Meredith
--------------------------------------------------------------------------------

3. Correspondence to Spectrum shall be addressed as follows:
Spectrum Equity Investors IV, L.P.
Spectrum IV Investment Managers' Fund, L.P.
Spectrum Equity Investors Parallel IV, L.P.,           with a copy to:
--------------------------------------------------------------------------------

One International Place                  Edwards & Angell, LLP
29th Floor                               101 Federal Street
Boston, MA 02110                         Boston, MA 02110 USA
Telecopy: (617) 464-4601                 Telecopy: (617) 439-4170
Attention:  Kevin J. Maroni              Attention: Stephen O. Meredith
--------------------------------------------------------------------------------Exhibit 10.60

NEITHER THIS WARRANT NOR THE SHARES ISSUABLE UPON EXERCISE OF THIS WARRANT HAVE
BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE
STATE SECURITIES LAWS AND NEITHER THIS WARRANT NOR THE SHARES ISSUABLE UPON
EXERCISE OF THIS WARRANT MAY BE SOLD OR TRANSFERRED UNLESS THE REGISTRATION
PROVISIONS OF THE SAID ACT AND APPLICABLE STATE SECURITIES LAWS HAVE BEEN
COMPLIED WITH OR UNLESS COMPLIANCE WITH SUCH PROVISIONS IS NOT REQUIRED.

                                                                February 9, 2005

                               MOTIENT CORPORATION

                          COMMON STOCK PURCHASE WARRANT

Void after February 9, 2010

         This Warrant (the "Warrant") entitles ________________ (including any
successors or assigns, the "Holder"), for value received, to purchase from
motient corporation, a Delaware corporation, at any time and from time to time,
subject to the terms and conditions set forth herein, during the period starting
from 5:00 a.m. on the Initial Exercise Date (as defined in Section 1 below) to
5:00 p.m., Eastern time, on the Expiration Date (as defined in Section 1 below),
at which time this Warrant shall expire and become void, all or any portion of
the vested Warrant Shares at the Exercise Price (as defined in Section 1 below).
This Warrant also is subject to the following terms and conditions:

         1. Definitions. As used in this Warrant, the following terms shall have
the respective meanings set forth below or elsewhere in this Warrant as referred
to below:

         "Affiliate" means any Person that, directly or indirectly, through one
or more intermediaries, controls, is controlled by, or is under common control
with, a Person, as such terms are used and construed under Rule 144, and any
Person (or group of Persons) who share(s) voting or investment power or is (are)
deemed a beneficial owner(s), as such terms are used and construed under Rule
13d-3 of the rules and regulations promulgated under the Securities Exchange Act
of 1934, as amended, including, without limitation, any Person that serves as a
general partner and/or investment adviser or in a similar capacity of a Person.

         "Common Stock" means the common stock, $0.01 par value per share, of
the Company (including any securities into which or for which such shares may be
exchanged for, or converted into, pursuant to any stock dividend, stock split,
stock combination, recapitalization, reclassification, reorganization or other
similar event).

                                       1
<PAGE>

         "Company" means Motient Corporation, a Delaware corporation.

         "Exercise Price" means, $22.50 per share of Common Stock, as applicable
and as adjusted from time to time pursuant to the terms of this Warrant.

         "Expiration Date" means February 9, 2010.

         "Fair Market Value" shall mean (i) if the Common Stock is traded on
Nasdaq, then the last reported sale price per share of Common Stock on The
NASDAQ Stock Market or any national securities exchange in which such Common
Stock is quoted or listed, as the case may be, on the date immediately preceding
each date the Warrant is exercised or, if no such sale price is reported on such
date, such price on the next preceding business day in which such price was
reported, (ii) if the Common Stock is actively traded over-the-counter, then the
average of the closing bid and asked prices over the five (5) trading days ended
on the trading day immediately preceding each date the Warrant is exercised or
(iii) if such Common Stock is not traded, quoted or listed on The NASDAQ Stock
Market or any national securities exchange or the over-the-counter market, then
the fair market value of a share of Common Stock, as determined in good faith by
the Board of Directors of the Company.

         "Holder" has the meaning set forth in the preamble of this Warrant.

         "Initial Exercise Date" means the date on which this Warrant first
vests in accordance with Section 2.1 hereof.

         "Person" (whether or not capitalized) means an individual, entity,
partnership, limited liability company, corporation, association, trust, joint
venture, unincorporated organization, and any government, governmental
department or agency or political subdivision thereof.

         "SEC" means the Securities and Exchange Commission

         "Shares" means the shares of Common Stock issued pursuant to the Merger
Agreement (including any securities into which or for which such shares may be
exchanged or converted pursuant to any stock dividend, stock split, stock
combination, recapitalization, reclassification, reorganization or other similar
event).

         "Merger/Stock Purchase Agreement" means that certain Stock Purchase
Agreement/Agreement and Plan of Merger dated February 9, 2005, by and between
the Company and the other parties thereto.

         "Warrant Shares" means an aggregate of _______ shares of Common Stock,
after giving effect to all adjustments thereto provided for herein, including,
without limitation, those set forth in Section 4 hereof.

                                       2
<PAGE>

         2.  Exercise of Warrant.

         2.1 Method of Exercise; Vesting. Subject to all of the terms and
conditions hereof (including the vesting provisions set forth below), this
Warrant may be exercised in whole or in part, with respect to then vested
Warrant Shares, at any time and from time to time during the period commencing
on the Initial Exercise Date and ending on the Expiration Date. Exercise shall
be by presentation and surrender to the Company at its principal office, or to
the transfer agent of the Company, of this Warrant and the notice and
subscription form annexed hereto, executed by the Holder, which shall indicate
the number of shares for which the Holder intends to exercise this Warrant,
together with payment to the Company in accordance with Section 3 hereof in an
amount equal to the product of the Exercise Price multiplied by the number of
Warrant Shares being purchased upon such exercise. Upon and as of receipt by the
Company (or the transfer agent) of such properly completed and duly executed
purchase form accompanied by payment as herein provided, the Holder shall be
deemed to be the Holder of record of the Warrant Shares issuable upon such
exercise, notwithstanding that the stock transfer books of the Company shall
then be closed or that certificates representing such Warrant Shares shall not
then actually be, or have been, delivered to the Holder.

         This Warrant shall become exercisable with respect to Warrant Shares
("vest") as follows: (i) with respect to 35% of the Warrant Shares, on March 11,
2005, if a registration statement covering the resale of the Shares shall not
have been filed with the SEC by such date, (ii) with respect to an additional
35% of the Warrant Shares, on April 10, 2005, if a registration statement
covering the resale of the Shares shall not have been filed with the SEC by such
date, and (iii) with respect to the remaining 30% of the Warrant Shares, on
August 7, 2005, if a registration statement covering the resale of the Shares
shall not have been declared effective by the SEC by such date and remained
continuously effective through such date or, if later, for a period of not less
than 60 days; provided, however, that if this Warrant does not vest and become
exercisable for any Warrant Shares in accordance with this paragraph, then this
Warrant shall become null and void but shall remain in effect as to all such
Warrant Shares that have vested.

         2.2 Delivery of Stock Certificates on Exercise. As soon as practicable
after the exercise of this Warrant, and in any event within three (3) business
days thereafter, the Company, at its expense, and in accordance with applicable
securities laws, will cause to be issued in the name of and delivered to the
Holder, or as the Holder may direct (subject in all cases, to the provisions of
Section 9 hereof), a certificate or certificates for the number of Warrant
Shares purchased by the Holder on such exercise, plus, in lieu of any fractional
share to which the Holder would otherwise be entitled, cash equal to such
fraction multiplied by the Fair Market Value.

         2.3 Shares To Be Fully Paid and Nonassessable. All Warrant Shares
issued upon the exercise of this Warrant shall be validly issued, fully paid and
nonassessable, free of all liens, taxes, charges and other encumbrances or
restrictions on sale (other than those set forth herein).

                                       3
<PAGE>

         2.4 Fractional Shares. No fractional shares of Common Stock or scrip
representing fractional shares of Common Stock shall be issued upon the exercise
of this Warrant. With respect to any fraction of a share of Common Stock called
for upon any exercise hereof, the Company shall make a cash payment to the
Holder as set forth in Section 2.2 hereof.

         2.5 Issuance of New Warrants; Company Acknowledgment. Upon any partial
exercise of this Warrant, the Company, at its expense, will forthwith and, in
any event within three (3) business days, issue and deliver to the Holder a new
warrant or warrants of like tenor, registered in the name of the Holder,
exercisable, in the aggregate, for the balance of the Warrant Shares. Moreover,
the Company shall, at the time of any exercise of this Warrant, upon the request
of the Holder, acknowledge in writing its continuing obligation to afford to the
Holder any rights to which the Holder shall continue to be entitled after such
exercise in accordance with the provisions of this Warrant; provided, however,
that if the Holder shall fail to make any such request, such failure shall not
affect the continuing obligation of the Company to afford to the Holder any such
rights.

         2.6 Payment of Taxes and Expenses. The Company shall pay any recording,
filing, stamp or similar tax which may be payable in respect of any transfer
involved in the issuance of, and the preparation and delivery of certificates
(if applicable) representing, (i) any Warrant Shares purchased upon exercise of
this Warrant and/or (ii) new or replacement warrants in the Holder's name or the
name of any transferee of all or any portion of this Warrant.

         3. Payment of Exercise Price. The Exercise Price for the Warrant Shares
being purchased may be paid (i) in cash, by certified check or by wire transfer
to an account designated in writing by the Company, (ii) by cancellation of
indebtedness owing from the Company to the Holder, (iii) by the Holder
surrendering a number of Warrant Shares having a Fair Market Value on the date
of exercise equal to, greater than (but only if by a fractional share) or less
than the required aggregate Exercise Price, in which case the Holder shall
receive the number of Warrant Shares to which it would otherwise be entitled
upon such exercise, less the surrendered shares, or (iv) any combination of the
methods described in the foregoing clauses (i), (ii) and (iii).

         4. Adjustment of Exercise Price. The Exercise Price shall be subject to
adjustment from time to time upon the happening of certain events as follows:

         4.1. Subdivision or Combination of Stock. If at any time or from time
to time after the date hereof, the Company shall subdivide (by way of stock
dividend, stock split or otherwise) its outstanding shares of Common Stock, the
Exercise Price in effect immediately prior to such subdivision shall be reduced
proportionately and the number of Warrant Shares (calculated to the nearest
whole share) shall be increased proportionately, and conversely, in the event
the outstanding shares of Common Stock shall be combined (whether by stock
combination, reverse stock split or otherwise) into a smaller number of shares,
the Exercise Price in effect immediately prior to such combination shall be
increased proportionately and the number of Warrant Shares (calculated to the

                                       4
<PAGE>

nearest whole share) shall be decreased proportionately. The Exercise Price and
the number of Warrant Shares, as so adjusted, shall be readjusted in the same
manner upon the happening of any successive event or events described in this
Section 4.1.

         4.2 Adjustment for Stock Dividends. If at any time after the date
hereof, the Company shall declare a dividend or make any other distribution upon
any class or series of stock of the Company payable in shares of Common Stock or
securities convertible into shares of Common Stock, the Exercise Price and the
number of Warrant Shares to be obtained upon exercise of this Warrant shall be
adjusted proportionately to reflect the issuance of any shares of Common Stock
or convertible securities, as the case may be, issuable in payment of such
dividend or distribution. The Exercise Price and the number of Warrant Shares,
as so adjusted, shall be readjusted in the same manner upon the happening of any
successive event or events described in this Section 4.2. Notwithstanding the
foregoing, no adjustment shall be made with respect to any dividend of stock
purchase rights declared in connection with the issuance of up to up to
2,500,000 shares of Common Stock at a purchase price per share of $8.57 to the
Company's stockholders of record on December 17, 2004 pursuant to its publicly
announced rights offering.

         4.3 Adjustments for Reclassifications. If the Common Stock issuable
upon the conversion of this Warrant shall be changed into the same or a
different number of shares of any class(es) or series of stock, whether by
reclassification or otherwise (other than an adjustment under Sections 4.1 and
4.2 or a merger, consolidation, or sale of assets provided for under Section
4.4), then and in each such event, the Holder hereof shall have the right
thereafter to convert each Warrant Share into the kind and amount of shares of
stock and other securities and property receivable upon such reclassification,
or other change by holders of the number of shares of Common Stock into which
such Warrant Shares would have been convertible immediately prior to such
reclassification or change, all subject to successive adjustments thereafter
from time to time pursuant to and in accordance with, the provisions of this
Section 4.

         4.4 Adjustments for Merger or Consolidation. In the event that, at any
time or from time to time after the date hereof, the Company shall (a) effect a
reorganization, (b) consolidate with or merge into any other Person, or (c) sell
or transfer all or substantially all of its properties or assets or more than
50% of the voting capital stock of the Company (whether issued and outstanding,
newly issued, from treasury, or any combination thereof) to any other person
under any plan or arrangement contemplating the consolidation or merger, sale or
transfer, or dissolution of the Company, then, in each such case, the Holder,
upon the exercise of this Warrant as provided in Section 2.1 hereof at any time
or from time to time after the consummation of such reorganization,
consolidation, merger or sale or the effective date of such dissolution, as the
case may be, shall receive, in lieu of the Warrant Shares issuable on such
exercise immediately prior to such consummation or such effective date, as the
case may be, the stock and property (including cash) to which the Holder would
have been entitled upon the consummation of such consolidation or merger, or
sale or transfer, or in connection with such dissolution, as the case may be, if
the Holder had so exercised this Warrant immediately prior thereto (assuming the
payment by the Holder of the Exercise Price therefor as required hereby in a
form permitted hereby, which payment

                                       5
<PAGE>

shall be included in the assets of the Company for the purposes of determining
the amount available for distribution), all subject to successive adjustments
thereafter from time to time pursuant to, and in accordance with, the provisions
of this Section 4.

         4.5 Continuation of Terms. Upon any reorganization, consolidation,
merger or transfer (and any dissolution following any such transfer) referred to
in this Section 4, this Warrant shall continue in full force and effect and the
terms hereof shall be applicable to the shares of Common Stock and other
securities and property receivable upon the exercise of this Warrant after the
consummation of such reorganization, consolidation or merger or the effective
date of dissolution following any such transfer, as the case may be, and shall
be binding upon the issuer of any such Common Stock or other securities or
property, including, in the case of any such transfer, the Person acquiring all
or substantially all of the properties or assets or more than 50% of the voting
capital stock of the Company (whether issued and outstanding, newly issued or
from treasury or any combination thereof), whether or not such Person shall have
expressly assumed the terms of this Warrant.

         4.6 Certificate as to Adjustments. Upon the occurrence of each
adjustment or readjustment of the Exercise Price and number of Warrant Shares
pursuant to this Section 4, this Warrant shall, without any action on the part
of the Holder, be adjusted in accordance with this Section 4, and the Company,
at its expense, promptly shall compute such adjustment or readjustment in
accordance with the terms hereof and prepare and furnish to the Holder a
certificate setting forth such adjustment or readjustment, showing in detail the
facts upon which such adjustment or readjustment is based. The Company will
forthwith send a copy of each such certificate to the Holder in accordance with
Section 11.4 below.

         5. Registration Rights. The Warrant Shares shall be entitled to
registration rights and all other rights as applicable to such shares in
accordance with that certain Registration Rights Agreement, dated as of the date
hereof by and among the Company and the Investors named therein.

         6. Notices of Record Date. Upon (a) any establishment by the Company of
a record date of the holders of any class of securities for the purpose of
determining the holders thereof who are entitled to receive any dividend or
other distribution, or right or option to acquire securities of the Company, or
any other right, or (b) any capital reorganization, reclassification,
recapitalization, merger or consolidation of the Company with or into any other
corporation, any transfer of all or substantially all the assets of the Company,
or any voluntary or involuntary dissolution, liquidation or winding up of the
Company, or the sale, in a single transaction, of a majority of the Company's
voting stock (whether newly issued, or from treasury, or previously issued and
then outstanding, or any combination thereof), the Company shall mail to the
Holder at least ten (10) business days, or such longer period as may be required
by law, prior to the record date specified therein, a notice specifying (i) the
date established as the record date for the purpose of such dividend,
distribution, option or right and a description of such dividend, distribution,
option or right, (ii) the date on which any such reorganization,
reclassification, transfer, consolidation, merger, dissolution, liquidation or

                                       6
<PAGE>

winding up, or sale is expected to become effective and (iii) the date, if any,
fixed as to when the holders of record of Common Stock shall be entitled to
exchange their shares of Common Stock for securities or other property
deliverable upon such reorganization, reclassification, transfer, consolidation,
merger, dissolution, liquidation or winding up.

         7. Exchange of Warrant. Subject to the provisions of Section 9 hereof
(if and to the extent applicable), this Warrant shall be exchangeable, upon the
surrender hereof by the Holder at the principal office of the Company, for new
warrants of like tenor, each registered in the name of the Holder or in the name
of such other persons as the Holder may direct (upon payment by the Holder of
any applicable transfer taxes). Each of such new warrants shall be exercisable
for such number of Warrant Shares as the Holder shall direct, provided that all
of such new warrants shall represent, in the aggregate, the right to purchase
the same number of Warrant Shares and cash, securities or other property, if
any, which may be purchased by the Holder upon exercise of this Warrant at the
time of its surrender.

         8. No Dilution or Impairment. The Company will not, by amendment of its
Certificate of Incorporation or Bylaws or through any reorganization, transfer
of assets, consolidation, merger, dissolution, issue or sale of securities or
any other voluntary action, avoid or seek to avoid the observance or performance
of any of the terms of this Warrant, but will at all times in good faith assist
in the carrying out of all such terms and in the taking of all action as may be
necessary or appropriate in order to protect the rights of the Holder against
dilution, or other impairment.

         9. Transfer Provisions, etc.

         9.1 Legends. Pursuant to the Merger Agreement, each
certificate representing any Warrant Shares issued upon exercise of this
Warrant, and of any shares of Common Stock into which such Warrant Shares may be
converted, shall bear the following legend:

         "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
         UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE OFFERED OR
         SOLD IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT UNDER SAID
         ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, or in a transaction not
         subject to, REGISTRATION UNDER SAID ACT."

         9.2 Mechanics of Transfer.

              (a) Any transfer of all or any portion of this Warrant (and the
Warrant Shares), or of any interest herein or therein, that is otherwise in
compliance with applicable law shall be effected by surrendering this Warrant to
the Company at its principal office, together with a duly executed form of
assignment, in the form attached hereto. In the event of any such transfer of
this Warrant, the Company shall issue a new warrant or warrants of like tenor to
the transferee(s), representing, in the aggregate, the right to purchase the
same number of Warrant Shares and cash,

                                       7
<PAGE>

securities or other property, if any, which may be purchased by the Holder upon
exercise of this Warrant at the time of its surrender.

              (b) In the event of any transfer of all or any portion of this
Warrant in accordance with Section 9.2(a) above, the Company shall issue (i) a
new warrant of like tenor to the transferee, representing the right to purchase
the number of Warrant Shares, and cash, securities or other property, if any,
which were purchasable by the Holder of the transferred portion of this Warrant,
and (ii) a new warrant of like tenor to the Holder, representing the right to
purchase the number of Warrant Shares, and cash, securities or other property,
if any, purchasable by the Holder of the un-transferred portion of this Warrant.
Until this Warrant or any portion thereof is transferred on the books of the
Company, the Company may treat the Holder as the absolute holder of this Warrant
and all right, title and interest therein for all purposes, notwithstanding any
notice to the contrary.

         9.3 No Restrictions on Transfer. Subject to compliance with applicable
securities laws, this Warrant and any portion hereof, the Warrant Shares and the
rights hereunder may be transferred by the Holder in its sole discretion at any
time and to any Person or Persons, including without limitation Affiliates and
affiliated groups of such Holder, without the consent of the Company.

         9.4 Warrant Register. The Company shall keep at its principal office a
register for the registration, and registration of transfers, of the Warrants.
The name and address of each Holder of one or more of the Warrants, each
transfer thereof and the name and address of each transferee of one or more of
the Warrants shall be registered in such register. The Company shall give to any
Holder of a Warrant promptly upon request therefor, a complete and correct copy
of the names and addresses of all registered Holders of the Warrants.

         10. Lost, Stolen or Destroyed Warrant. Upon receipt by the Company of
evidence satisfactory to it of loss, theft, destruction or mutilation of this
Warrant and, in the case of loss, theft or destruction, on delivery of a
customary affidavit of the Holder and indemnity agreement, or, in the case of
mutilation, upon surrender of this Warrant, the Company at its expense will
execute and deliver, or will instruct its transfer agent to execute and deliver,
a new Warrant of like tenor and date, and any such lost, stolen or destroyed
Warrant thereupon shall become void.

         11. General.

         11.1 Authorized Shares, Reservation of Shares for Issuance. At all
times while this Warrant is outstanding, the Company shall maintain its
corporate authority to issue, and shall have authorized and reserved for
issuance upon exercise of this Warrant, such number of shares of Common Stock,
any other capital stock or other securities as shall be sufficient to perform
its obligations under this Warrant (after giving effect to any and all
adjustments to the number and kind of Warrant Shares purchasable upon exercise
of this Warrant).

                                       8
<PAGE>

         11.2 No Impairment. The Company will not, by amendment of its
Certificate of Incorporation or through any reorganization, transfer of assets,
consolidation, merger, dissolution, issuance or sale of securities, sale or
other transfer of any of its assets or properties, or any other voluntary
action, avoid or seek to avoid the observance or performance of any of the terms
of this Warrant, but will at all times in good faith assist in the carrying out
of all such terms and in the taking of all such action as may be necessary or
appropriate in order to protect the rights of the Holder hereunder against
impairment. Without limiting the generality of the foregoing, the Company (a)
will not increase the par value of any shares of Common Stock receivable upon
the exercise of this Warrant above the amount payable therefor on such exercise,
and (b) will take all action that may be necessary or appropriate in order that
the Company may validly and legally issue fully paid and nonassessable shares of
Common Stock upon the exercise of this Warrant.

         11.3 No Rights as Stockholder. The Holder shall not be entitled to vote
or to receive dividends or to be deemed the holder of Common Stock that may at
any time be issuable upon exercise of this Warrant for any purpose whatsoever,
nor shall anything contained herein be construed to confer upon the Holder any
of the rights of a stockholder of the Company or any right to vote for the
election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action (whether
upon any recapitalization, issuance or reclassification of stock, change of par
value or change of stock to no par value, consolidation, merger or conveyance or
otherwise), or to receive notice of meetings (except to the extent otherwise
provided in this Warrant), or to receive dividends or subscription rights, until
the Holder shall have exercised this Warrant and been issued Warrant Shares in
accordance with the provisions hereof.

         11.4 Notices. Any notices, reports or other correspondence (hereinafter
collectively referred to as "correspondence") required or permitted to be given
hereunder shall be given in writing and shall be deemed given if sent by
certified or registered mail (return receipt requested), overnight courier or
telecopy (with confirmation of receipt), or delivered by hand to the party to
whom such correspondence is required or permitted to be given hereunder.
Correspondence shall be directed:

                                  (a) if to the Company at:

                                    Motient Corporation
                                    300 Knightsbridge Parkway
                                    Lincolnshire, IL  60069
                                    Attention:  Chief Financial Officer
                                    Telecopier:  847-478-4810

                           with copies to:

                                    Motient Corporation
                                    300 Knightsbridge Parkway
                                    Lincolnshire, IL  60069
                                    Attention:  General Counsel
                                    Telecopier:  847-478-4810

                                       9
<PAGE>

                                    Andrews Kurth LLP
                                    450 Lexington Avenue
                                    New York, NY  10017
                                    Attention:  Paul Silverstein, Esq.
                                    Telecopier:  (212) 850-2929

                                    (b) if to the Holder at:

                                    [address]

                                    with a copy to:

                                    [address]

         12. Amendment and Waiver. No failure or delay of the Holder in
exercising any power or right hereunder shall operate as a waiver thereof, nor
shall any single or partial exercise of any such right or power, or any
abandonment or discontinuance of steps to enforce such a right or power,
preclude any other or further exercise thereof or the exercise of any other
right or power. The rights and remedies of the Holder are cumulative and not
exclusive of any rights or remedies which it would otherwise have. The terms of
this Warrant may be amended, modified or waived only with the written consent of
the Company and the Holder.

         13. Governing Law. This Warrant shall be governed by and construed in
accordance with the laws of the State of Delaware, as such laws are applied to
contracts entered into and wholly to be performed within the State of Delaware
and without giving effect to any principles of conflicts or choice of law that
would result in the application of the laws of any other jurisdiction.

         14. Covenants To Bind Successor and Assigns. All covenants,
stipulations, promises and agreements in this Warrant contained by or on behalf
of the Company shall bind its successors and assigns, whether so expressed or
not.

         15. Severability. In case any one or more of the provisions contained
in this Warrant shall be invalid, illegal or unenforceable in any respect, the
validity, legality and enforceability of the remaining provisions contained
herein shall not in any way be affected or impaired thereby. The parties shall
endeavor in good faith negotiations to replace the invalid, illegal or
unenforceable provisions with valid provisions the economic effect of which
comes as close as possible to that of the invalid, illegal or unenforceable
provisions.

         16. Construction. The definitions of this Warrant shall apply equally
to both the singular and the plural forms of the terms defined. Wherever the
context may require, any pronoun shall include the corresponding masculine,
feminine and neuter forms. The section and paragraph headings used herein are
for convenience of reference only, are not part of this Warrant and are not to
affect the construction of or be taken into consideration in interpreting this
Warrant.

                                       10
<PAGE>

         17. Remedies. The Holder, in addition to being entitled to exercise all
rights granted by law, including recovery of damages, will be entitled to
specific performance of its rights under this Warrant. The Company agrees that
monetary damages would not be adequate compensation for any loss incurred by
reason of a breach by it of the provisions of this Warrant and hereby agrees to
waive the defense in any action for specific performance that a remedy at law
would be adequate. In any action or proceeding brought to enforce any provision
of this Warrant or where any provision hereof is validly asserted as a defense,
the successful party to such action or proceeding shall be entitled to recover
reasonable attorneys' fees in addition to any other available remedy.

                           [SIGNATURE PAGE TO FOLLOW]

                                       11
<PAGE>

         IN WITNESS WHEREOF, the Company has executed this Common Stock Purchase
Warrant as of February 9, 2005.

                                    COMPANY:

                                    MOTIENT CORPORATION

                                    By:/s/ Christopher Downie
                                       -------------------------------------
                                       Christopher Downie,
                                       Executive Vice President and Chief
                                       Operating Officer

                [SIGNATURE PAGE TO COMMON STOCK PURCHASE WARRANT]

<PAGE>

                                   NOTICE AND
                                  SUBSCRIPTION

To:      MOTIENT CORPORATION                            Date:
         300 Knightsbridge Parkway                          -----------------
         Lincolnshire, IL  60069

         The undersigned hereby irrevocably elects to exercise the right of
purchase represented by the attached Warrant for, and to exercise thereunder,
__________ shares of Common Stock, of MOTIENT CORPORATION a Delaware
corporation, and tenders herewith payment of $__________, representing the
aggregate purchase price for such shares based on the price per share provided
for in such Warrant. Such payment is being made in accordance with [Section
3(i)] [Section 3(ii)] [Section 3(iii)] [Section 3(iv)] of the attached Warrant.

Please issue a certificate or certificates for such shares of Common Stock in
the following name or names and denominations and deliver such certificate or
certificates to the person or persons listed below at their respective addresses
set forth below:

If said number of shares of Common Stock shall not be all the shares of Common
Stock issuable upon exercise of the attached Warrant, a new Warrant is to be
issued in the name of the undersigned for the balance remaining of such shares
of Common Stock less any fraction of a share of Common Stock paid in cash.

Dated:  ___________, ____                     _________________________________
                                              Signature

<PAGE>

                              FORM OF ASSIGNMENT

                   (To be executed upon assignment of Warrant)

         For value received, __________________________________ hereby sells,
assigns and transfers unto __________________ the attached Warrant [__% of the
attached Warrant], together with all right, title and interest therein, and does
hereby irrevocably constitute and appoint ____________________ attorney to
transfer said Warrant [said percentage of said Warrant] on the books of MOTIENT
CORPORATION, a Delaware corporation, with full power of substitution in the
premises.

         If not all of the attached Warrant is to be so transferred, a new
Warrant is to be issued in the name of the undersigned for the balance of said
Warrant.

         The undersigned hereby agrees that it will not sell, assign, or
transfer the right, title and interest in and to the Warrant unless applicable
federal and state securities laws have been complied with.

Dated:  _____________, ____                   _________________________________
                                              Signature

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