Well I finally got Windows 7 beta installed last night. Very easy install (So was vista and this appeared to have the same process) Microsoft finally made it easy to manage your partitions and where you want to install your OS. You can format, partition and delete partitions from the installer very easily.
I have to say Windows 7 starts way faster then Vista. I have not had a chance to run a game and benchmark it yet. (I will do GTA4 tonight since that one has a heavy system requirements.)
Overall if you have vista stick with it. W7 will give you more resources to use but visually it looks only slightly different. I plan to upgrade as I want to use as much of my system resources as possible. (Plus I have the MSFT Alumni/employee discount as well)
We will see if this helps Microsoft or not.