Motient to Present at Bear Stearns Global Credit Conference

May 14, 2007

Reston, VA, May 14, 2007 - Motient Corporation (MNCP) and its majority owned subsidiary TerreStar Networks Inc. today announced that Robert H. Brumley, President and CEO, and Neil Hazard, CFO, will be presenting at the Bear Stearns 16th Annual Global Credit Conference on Wednesday, May 16, 2007, at 9:00am Eastern Time, at the Waldorf-Astoria Hotel in New York City.

The presentation will be available prior to the conference on the Investor Relations page of the Motient Web site -- http://www.motient.com.

Along with presenting at the Global Credit Conference, Neil Hazard will be participating on the Drivers of Investment Opportunities in the Satellite Sector panel scheduled for Wednesday, May 16, from 10:30-11:15am.

Motient is the controlling shareholder of TerreStar Networks Inc. and TerreStar Global Ltd., and a shareholder of SkyTerra Communications and Mobile Satellite Ventures LP. For additional information on Motient, please visit the company's website at www.motient.com.

Statement under the Private Securities Litigation Reform Act:

This press release may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act, with respect to the strategy of Motient, its plans, and the transactions described in this press release. Such statements generally include words such as could, can, anticipate, believe, expect, seek, pursue, proposed, potential and similar words and terms in connection with future results. We assume no obligation to update or supplement such forward-looking statements.

Investor Contact
Robert Siegel
Motient Corporation
703.483.7802
robert.siegel@terrestar.com

Media Contact
Andrew Krejci
Motient Corporation/TerreStar Networks
703.483.7856
andrew.krejci@terrestar.com