I just finished uploading the release of Unity 1.0 to Codeplex. The bits have also been uploaded to MSDN, but it'll take a while to propagate.

The release includes the Unity MSI, plus two more MSIs with Visual Studio 2005 and 2008 integrated documentation. Rather than bloat the main download with three copies of the docs, we chose to make the separate installers available for those who want them.

We've also split out the source as a separate download, so for those who don't trust MSIs or something, you can still grab the source code.

Enjoy! I'm off to work on version 1.1. :-)