So I waited a little while to install Windows 7 on my MacBook until the VMWare Fusion 3.0 came out. That happened yesterday and I did a clean install (as I previously had XP). In half an hour I was done with Google Pack installed and just Office to go. Smooth as anything and lightning fast. Also, none of the annoying security features others found on Vista. This bodes well for productivity in my network.
[Update: I take it a little back. Windows 7 is running slower than Windows XP — side by side and with XP getting a head start! It is annoying enough to stay with XP at least until I work out why. Fortunately on a Mac I can switch easily.]