I'm not a betting man, but if Vista is as much on the nose as people say and Windows 7 is the real successor to XP as people say, is there some significance in the date here?
"The software giant Microsoft
announced over the weekend that it would allow computer manufacturers to receive copies of the old operating system Windows XP until the end of May 2009, which is shortly before the successor to Vista, Windows 7, is expected to hit the market. While the economy may be struggling, the oft-criticized operating system has been a deterrent for people in the market for a new PC, preferring instead the previous operating system, Windows XP.

Windows Vista can be characterized as nothing short of a failure, earning the ire of PC fans, as they struggle to use, understand, and even run Windows Vista on both older and newer PCs. The operating system is widely criticized for its tendency to hog system resources and it has been uncharacteristically slow to be adopted by businesses compared to other Windows versions. On the other hand, Windows XP is considered reliable and easier to use.
Microsoft originally planned to retire Windows XP in January 2008, but decided to extend the life of the operating system in response to criticisms and the demand from consumers and manufactures alike, who wished to run the older XP system on newly produced computers.
This is great news for gamers as well. The massive amount of system resources that Vista consumes has created a problem for gamers, creating lag and forcing users to run games on lower graphic settings. The news will give gamers who are looking to upgrade to a new computer more options in what they choose, easily bypassing Vista until the new operating system is available. Now that Microsoft has seemingly thrown in the towel on Vista, hopefully they put their resources towards an operating system free of the mistakes that plagued Vista."
Microsoft Extends the Life of Windows XP
Norm