MSF won Win 8 contract from US Government for $600 millions
google the story.
The United States Department of Defense has just awarded the software company with a three year $617 million joint enterprise licensing agreement.
Under the agreement, the Army, Air Force and DISA can begin using the newest versions of Microsoft products, including Microsoft Office 2013, SharePoint 2013 and Windows 8.
Apparently both Microsoft and the DOD have customized the combination of software and services to meet the (obviously) very specific needs of the US military.