Vista RC1 is out! The news was announced late last night on the Windows Vista blog. Additional coverage here and here. Vista RC1 should be available now to beta testers and TAP participants on Connect and I'd expect to see it up on MSDN sometime next week. I jumped the gun and started downloading the build yesterday before it was completely signed off so I've got a freshly burned DVD and will be installing this weekend. From top to bottom Microsoft is encrouraging as many people as possible to install and test this build. I've been using Vista as my primary OS for about 3 months now. Give it a try and if you find any issues be part of the team by reporting them!