Attached Link: http://www.dailytech.com/US+Army+Says+No+to+Windows+7+Yes+to+Vista+Upgrade/article15217.htm

> Quote - The OS market isn't being entirely driven by the home PC market. It's also being driven by the millions of government agencies, retailers and business users who were  scared to death by Vista and refused to have that OS installed on their systems.

I tried googling "government upgrades to vista" and found the above article that the US Army is upgrading to Vista and not Win7. I suspect that has less to do with any particular technical preferences than that Win7's exact security features won't be fully known till it's been released and that it will take time for Army testing to confirm that it fully meets their needs.

This article, from a year ago, states that XP sales were going to be extended till 2010 due to Ultra Low Cost PCs.
http://www.thestandard.com/news/2008/04/03/microsoft-extends-xp-through-2010-ultra-low-cost-laptops

A newer article extends XP sales through 2011 to allow time for migration to Win7, with a backtrack capability to XP for compatibility issues.
http://www.computerworld.com/s/article/print/9134528/Microsoft_backtracks_extends_XP_availability_to_2011?taxonomyName=Windows&taxonomyId=125

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