Iridium Management To Speak At Nomura Global Satellite Conference

NEW YORK, NY and BETHESDA, MD, June 15, 2009 – GHL Acquisition Corp. [NYX: GHQ] (“GHL Acquisition”) and Iridium Satellite LLC (“Iridium” or the “Company”), a leading provider of voice and data mobile satellite services, today jointly announced that Matt Desch, Chief Executive Officer of Iridium, is scheduled to deliver a presentation on June 17, 2009 at 9:10 a.m. GMT at the Nomura Global Satellite Conference 2009 in London.

The written presentation will be available in the Investor Relations section of Iridium’s website, www.iridium.com.

About Iridium Satellite
Iridium Satellite LLC (www.iridium.com) is the only mobile satellite service (“MSS”) company offering 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 terrestrial communication networks. Iridium’s subscriber growth has been driven by increasing demand for reliable, global communications. Iridium serves commercial markets through a worldwide network of hundreds of distributors, and provides services to the U.S. DoD, 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 currently privately held.

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.

Contacts:

For GHL Acquisition Corp.
James Babski
GHL Acquisition Corp.
212-372-4180
jbabski@greenhill.com

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

Jeffrey Taufield
Kekst and Company
212-521-4800
Jeffrey-taufield@kekst.com