EXHIBIT 31.2

                                  CERTIFICATION

     The undersigned, in her capacity as the Controller and Chief Accounting
Officer of Motient Corporation, being the principal financial officer, as the
case may be, provides the following certification required by 18 U.S.C. Section
1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

     I, Myrna J. Newman, hereby certify that:

     1.   I have reviewed this quarterly report on Form 10-Q of Motient
Corporation, a Delaware corporation;

      2.  Based on my knowledge, this report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this report;

     3.   Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as
of, and for, the periods presented in this report;

     4.   The registrant's other certifying officer and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial
reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the
registrant and have:

          (a)  Designed such disclosure controls and procedures, or caused
               such disclosure controls and procedures to be designed under our
               supervision, to ensure that material information relating to the
               registrant, including its consolidated subsidiaries, is made
               known to us by others within those entities, particularly during
               the period in which this report is being prepared;

          (b)  Designed such internal control over financial reporting, or
               caused such internal control over financial reporting to b
               designed under our supervision, to provide reasonable assurance
               regarding the reliability of financial reporting and the
               preparation of financial statements for external purposes in
               accordance with generally accepted accounting principles.

          (c)  Evaluated the effectiveness of the registrant's disclosure
               controls and procedures and presented in this report our
               conclusions about the effectiveness of the disclosure controls
               and procedures, as of the end of the period covered by this
               report based on such evaluation; and

          (d)  Disclosed in this report any change in the registrant's
               internal control over financial reporting that occurred during
               the registrant's most recent fiscal quarter (the registrant's
               fourth fiscal quarter in the case of an annual report) that has
               materially affected, or is reasonably likely to materially
               affect, the Company's internal control over financial reporting;
               and



     5.   The registrant's other certifying officer and I have disclosed, based
on my most recent evaluation of internal control over financial reporting, to
the registrant's auditors and the audit committee of the registrant's board of
directors (or persons performing the equivalent functions):

          (a) All significant deficiencies and material weaknesses in the design
          or operation of internal control over financial reporting which are
          reasonably likely to adversely affect the registrant 's ability to
          record, process, summarize and report financial information; and

          (b) Any fraud, whether or not material, that involves management or
          other employees who have a significant role in the registrant's
          internal control over financial reporting.

                                        /s/ Myrna J. Newman
                                        -------------------
                                        Myrna J. Newman

                                        Controller and Chief Accounting Officer
                                        (principal financial officer)

                                        August 9, 2006