My it guys installed Win 7 on a new Lenova desktop and were not impressed with the reliability. At least 50% of the time it would lock up on bootup and didn't get past the startup screen. Hopefully the final release will be more stable than the RC but I would wait and let others – and by that I mean real people you know and trust take the plunge first. If it's still got problems you can bet MS will release a Service pack ASAP.
The latest Fortune cover says 'Microsoft is Cool Again'. Man, if they are, I'm missing it. Can Win 7 do that? I'm pretty sure cool is being driven by clouds, smart phones and apps, not outdated operating systems that take forever to start-up and need updating every 4 days. We'll see what Win 7 can do. But by then hopefully I'll have my new Mac.