http://en.wikipedia.org/wiki/Usage_share_of_operating_systems http://en.wikipedia.org/wiki/Usage_share_of_operating_system... Around 10% upgrading per year isn

http://en.wikipedia.org/wiki/Usage_share_of_operating_systems http://en.wikipedia.org/wiki/Usage_share_of_operating_system... Around 10% upgrading per year isn't bad considering how big a jump it is from XP to 7. 7 to 8 is less of a jump and this announcement makes it much cheaper.