I don't see the big difference from 6.5 and this seems to be keeping the same 6.5 style with the X or OK on top right. If you check out this article which claims to be version 6.5.1, you will see a new design where things are moved to the bottom of the screen with larger OK button. So something isn't adding up here:
http://www.t3.com/news/windows-mobil...-corner?=41547