I'm currently giving Windows7 a try and besides the bugs, it looks nice, and has got some useful features that I feel comfortable with. So if their next release fixes the issues, I'll keep having it installed on my PC.
Don't miss their offer to give you a free run of Windows 7 till sometime in Jun-Jul next year. Offer ends August 20.
Not everyone uses Windows, man. Thats why Microsoft holds like 90% market share for this kind of shit. because people think windows is the only way to go. There's unix and linux, windows, Mac OS, and a few others that work just as well, and according to your tastes, sometimes better.