[zmmmmm]

I wonder what the corporate adoption of Win7+ is at this point?

Abandoning IE8 for various services will slowly start to hurt Microsoft as it forces people into using (probably) Chrome, or if not, FireFox. Especially once you are using Chrome, the lure of Google's ecosystem starts to become irresistable, and as Chrome use itself grows, Chrome as a platform becomes more and more attractive.

Of course this move in itself is irrelevant to that because it only affects such a tiny percentage of people. But as you add up a lot of niche services it will start to have a significant impact, I think.