Facilities construction and equipment installation on-schedule in preparation for the launch of MSV’s next-generation network

Reston, Va., November 20, 2008 — Mobile Satellite Ventures LP (MSV) announced today that the United States Federal Communications Commission (FCC) has granted communications licenses for the two new MSV gateways in the U.S. being built to support the company’s next-generation integrated satellite-terrestrial communication network for North America.

MSV is constructing a network with four new gateways located in Napa, California and Dallas, Texas, along with similar facilities in Ottawa, Ontario and Saskatoon, Saskatchewan in Canada. MSV also has an operating license for the Ottawa facility and has been granted authorization for the Saskatoon facility by Industry Canada (IC).

“This is another milestone achieved in the development and planned launch of MSV’s next-generation integrated satellite-terrestrial network that will provide ubiquitous coverage for North America,” said Robert M. Sorbello, vice president of satellite engineering for MSV. “All four of our next-generation gateways will be operational in advance of the launch of our first next-generation satellite that has a launch period beginning during the fourth quarter of 2009.”

MSV has now begun acceptance testing of the new communications equipment installed at both the Napa and Saskatoon facilities and plans to commence testing in the Dallas and Ottawa facilities during the first quarter of 2009. The Ottawa facility will also continue to serve as the communications gateway for MSV’s existing and legacy services.

Construction and preparation of all four sites is the responsibility of Boeing under the terms of the MSV-Boeing Next-Generation Space System contract.

MSV and its Canadian joint venture partner, Mobile Satellite Ventures (Canada) Inc. are developing an integrated satellite-terrestrial communications network, based on MSV’s patented ancillary terrestrial component (ATC) technology. MSV is owned and controlled by SkyTerra Communications, Inc. (OTCBB: SKYT).

# # #

About Mobile Satellite Ventures (www.msvlp.com) MSV delivers mobile wireless voice and data services primarily for public safety, security, fleet management and asset tracking in the U.S. and Canada. The company’s next-generation hybrid satellite-terrestrial communications network is expected to provide seamless, transparent and ubiquitous wireless coverage of the United States and Canada to conventional handsets. When completed, the network will support communications in a variety of market segments including public safety, homeland security, aviation, transportation and entertainment, by providing a platform for interoperable, user-friendly and feature-rich voice and high-speed data services.