EXHIBIT 31.2


                                  CERTIFICATION

I, Neil Hazard, hereby certify that:

        1.      I have reviewed this Annual Report on Form 10-K/A of Motient
Corporation, a Delaware corporation;


        2.      Based on my knowledge, this amended Annual 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
Company 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 we 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 be
                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 registrant's internal control over financial
                reporting; and


        5.      The registrant's other certifying officer and I have disclosed,
based on our 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/ Neil Hazard
                                         ---------------
                                         Neil Hazard
                                         Executive Vice President, Chief
                                         Financial Officer
                                         (Principal Financial Officer)
                                         April 27, 2007