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 quarterly 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 quarterly report;

         3.      Based on my knowledge, the financial statements, and other
financial information included in this amended quarterly 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 quarterly
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)) 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) 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

                 (c) 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 that has
                 materially affected, or is reasonably likely to materially
                 affect, the Company's internal control over financial
                 reporting; and

         5.      The 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)


                                              November 2, 2005