As you have propably already read on the blogosphere: a couple of days ago a pre-RTM build of Windows Vista (Build 5840) has leaked. Those who were in the CPP (Customer Preview Program) could use their product key to install and active the beta builds. This has ended with build 5840 as you can no longer use those product keys to install Windows Vista. Ah well, I guess we are going to have to wait for the RTM then.
Cross-posted from
The .NET Aficionado