This sounds cool. I'm kind of annoyed that they gave in to the "I need to run this with UAC off" demand, though. I wish they didn't give people any incentives to turn UAC off. And what's with the "English speaking countries" thing? Did they just place servers in Canada, New Zealand, Australia, Ireland and Great Britain, or is this just a "Urr, I guess those other guys aren't interested in anything that's only available in English" decision, like with the Live wave 2 betas?
Everything else sounds pretty good though. Desktop Search integration FTW.
So.. anyone still got an invite lying around?