From some 'leaked' info at http://microsoft-journal.spaces.live...D499!901.entry

Windows 8 PC's turn on fast, nearly instantly in some cases, and are ready to work without any long or unexpected delays. When customers want to check e-mail, sports scores, or play media they love to reach for their PCs because they can get to what they want quickly
Hmmm... The Ubuntu boot times may have had an effect in the ugly camp too.