So, I 'm using Windows 7 at work as a Sys. Admin and it's great. I noticed that M-Audio has beta drivers out for it, too. To be fair though, M-Audio's non-beta drivers suck about half the time...so I'd never use a beta from them.
So I thought I'd throw it out- who's using it? Are you able to use XP mode at all? Is there an ASIO4ALL?
Give me your feedback. My CPU usage is way under control because so much of the load appears to be farmed out to my graphics card, so I can run full Aero right now and still have really smooth visuals under heavy load. Not a blue screen yet, and only a couple admin-type things that have been a little headache.