I just got my hands on the Windows 7 build (6801) that was handed to PDC attendees a while back. It’s the M3 release I wrote about in my latest article on the Windows 7 UI. I’m currently installing it in a virtual machine and will be installing it on a laptop in a few days to a hands-on view and get a feel for what it’s like.
I’ll report back soon.
(click thumbnails for full-view)