Hi! I just finished upgrading my Windows 7 RC to the final version, and everything is working as expected. No visible changes in the UI or any other areas, still rock solid and FAST! This is (by far) the best desktop Windows version I had the placer to work with. I know there is no "supported" path for migrating from the RC but with a little trick (found through BING, hint: involves touching a cversion.ini file in the "sources" folder in the installation DVD) I was able to do it.
A couple days later I installed Office 2010 technical preview (x64), and I'm surprised on how well the setup experience was, and more important, how well Office programs seems to be working. There is no upgrade path from Office 2007 x86 so I uninstalled everything and after setup I had my previous Outlook 2007 mailbox configuration preserved. Thank god!
So, so far I'm very pleased with this version of Office 2010 and will be testing it in daily basis.
Andrés G Vettori, CTO, VMBC