1^st Quarter 2009 Earnings

May 4, 2009

This presentation may contain “Forward-Looking Statements”.  All
statements other than statements of historical facts made in this
presentation regarding the prospects of our industry and our
prospects, plans, financial position and business strategy may
constitute forward-looking statements.  We can give no assurance
that these expectations will prove to be correct.  Factors and risks
that could cause actual results to differ materially from our
expectations are described in the most recent SkyTerra Forms 10-Q
and 10-K, on file with the SEC.

May 4, 2009

Outline of Presentation

Alex Good – Chairman & CEO

Chipset Technology Update

Satellite Construction

Customer Sales Activity

Regulatory Initiatives and Filings

Market and Industry Perspectives

Scott Macleod – Chief Financial Officer

1Q09 Financial Results

April 1, 2009 Funding

Ownership and Capital Structure

Next-Generation Satellite System Costs

May 4, 2009

Chipset Technology Update (1)

We are making steady progress on our goal of integrating satellite
capability into a range of mass-market, terrestrial-capable handsets

Qualcomm’s first handset-capable LTE chipset, the MSM8960 will include our satellite air interface instead of the MSM8660

The industry is adopting the LTE protocol

The MSM8660 will not support LTE, while the MSM8960 will support LTE

The MSM8960 includes legacy CDMA and GSM-based 3G and 2G protocols

The MDM9600 will support LTE and a broad range of 3G and 2G protocols

Alcatel-Lucent has been selected to develop the Satellite Base Station
Subsystem compatible with the planned Qualcomm chipsets

May 4, 2009

Chipset Development Program (2)

We have added a second technology path with Infineon

The Infineon/Hughes Network Systems platform:

Combines GSM-based technologies with HNS’ GMR1-3G satellite air interface

The chipset platform (the XMM SDR210) is based on Infineon’s Software
Defined Radio architecture

HNS will develop and deliver GMR1-3G Satellite Base Station Subsystem

Key advantages of the two-vendor approach:

Technology flexibility

Strengthens strategic position in delivering next-generation solutions to the
broadest range of partners and market segments

Sharing costs with other ATC providers increases cost-effectiveness

May 4, 2009

Satellite Construction Program

The surface for the 22-meter reflector has been fully assembled and
successfully completed several stow and deploy sequences

The payload module testing has been completed and the payload module has been mated with the spacecraft bus

The development and testing of the GBBF systems is continuing

The launch window for SkyTerra 1 is expected to be open from March
2010 through May 2010

May 4, 2009

Customer Sales Activity

As we have done with the SMART^TM talkgroup program, we continue to develop reference customers and models of operation that will be a
framework for our next-generation system

Shelby County, Tennessee

In late April, we closed a significant MSAT-G2 sales order to Shelby County,
Tennessee

The buy was facilitated through Federal funding, specifically, the Urban Area
Security Initiative grant program

This model of pairing fixed installations with mobile kits is very attractive to
local governments

We are focused on finalizing plans to transition current customers to our next-generation system and expect to announce shortly several
transition initiatives

As we have already done with a number of private network customers,
we recently extended our existing satellite data communications services contract with Wireless Matrix

May 4, 2009

Regulatory Initiatives and Filings

On March 4, 2009, Harbinger and SkyTerra asked the FCC to separate the request
for authority to transfer control of SkyTerra from the request for approval of the
possible business combination between SkyTerra and Inmarsat

SkyTerra filed on April 29, 2009, an amendment to its earlier filing with the FCC
to implement ATC Reconsideration and Cooperation Agreement

We continue the formal satellite coordination process with the relevant ITU-
sanctioned operators and governments

May 4, 2009

Market and Industry Perspectives

Smartphone penetration is driving growth in data services revenue

The significant increase in data devices and usage requires significantly more
network capacity

The CTIA and third-party analysts note that mobile Internet services require
significantly more spectrum

There is limited new mobile spectrum that could be cleared in the medium term,
and existing spectrum positions lack uniform availability of 10 MHz carriers

May 4, 2009