I am waiting for MS to lead, not follow. The UI currently in the iPhone/Zune HD should have been done by MS years ago, given their wallet.
With their R&D budget about as big as Apple rakes in in revenues, I expect them to make UIs that presage your intent and blow things other than your socks off.
I don't know why everyone is excited about something that's already been done magnificently by Apple 2 years ago.
As they say, Redmond has fired up their copiers yet...