hmmm According to Steve Balmer of Microsoft.

Quote:

Microsoft's operating systems run on more than 90% of the world's personal computers.



Gartner and IDC claim PC sales of 45-46 million units worldwide in the quarter.
That's a LOT of PC's which "most" ship with Windows XP.

So, would seem that the question would be easier to answer if it was: "Who doesn't run XP?" It would be a much smaller list to print out then "Who runs XP?"