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Media Advisory from GHL Acquisition Corp. and Iridium Satellite LLC

NEW YORK and BETHESDA, Md., Dec. 2 /PRNewswire/ -- Iridium Satellite LLC will issue a press release tomorrow morning, Wednesday, December 3, 2008, announcing its 3rd Quarter 2008 results. Following the press release, GHL Acquisition Corp. (AMEX: GHQ) will host a call with Iridium management to discuss Iridium's 3rd Quarter 2008 results. The conference call with the GHL Acquisition Corp. and Iridium management teams is scheduled for tomorrow, Wednesday, December 3, 2008 at 8:00 am Eastern Time (ET). To participate, callers can dial the toll free number 866-393-0612 (U.S. callers only) or, from outside the U.S., 706-902-1870. The passcode for the live call is 75734776. On December 1, 2008, GHL Acquisition Corp. filed a preliminary proxy statement with the U.S. Securities and Exchange Commission (SEC) (http://www.sec.gov/) in connection with the transaction announced on September 23, 2008.

About GHL Acquisition Corp.

GHL Acquisition Corp. is a special purpose acquisition company, launched in February 2008, in an initial public offering raising $400 million of gross proceeds. Founded by Greenhill & Co., Inc., GHL Acquisition was formed for the purpose of acquiring, or acquiring control of, through a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination, one or more businesses or assets. It currently has no operating businesses.

About Iridium Satellite LLC

Iridium Satellite LLC (http://www.iridium.com/) is the only mobile satellite service (MSS) company offering pole-to-pole coverage over the entire globe. The Iridium constellation of low-earth orbiting (LEO), cross-linked satellites provides critical voice and data services for areas not served by other communication networks. Iridium's subscriber growth has been driven by increasing demand for reliable, secure, global communications. Iridium serves commercial markets through a worldwide network of hundreds of distributors, and provides services to the U.S. Department of Defense, and other U.S. and international government agencies. The company's customers represent a broad spectrum of industry, including maritime, aeronautical, government/defense, public safety, utilities, oil/gas, mining, forestry, heavy equipment and transportation. Iridium has launched a major development program for its next- generation satellite constellation, Iridium NEXT, which will result in continued and new Iridium MSS offerings. The company is headquartered in Bethesda, Md. and is privately held.

SOURCE: Iridium Satellite LLC

CONTACT: James Babski
GHL Acquisition Corp.
+1-212-372-4180,
jbabski@greenhill.com

Liz DeCastro
Iridium
+1-301-571-6257
liz.decastro@iridium.com

Web site: http://www.iridium.com/

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Kenneth B. Levy
1750 Tysons Blvd.
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McLean, VA 22102
(703) 287-7570
Investor.Relations@Iridium.com
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