I've seen opinions that suggest Microsoft are continuing their normal trend for alternate OS desirability: 95 - ugh!, XP - yay!, Vista - ugh!, 7 - yay!, 8 - ???
I've only just (last 12 months) got all our PCs onto 7, and the only touch-screens we've got are on Androids, so I'm not doing 8 for a loooong time .... until Windows 9 probably :)