Hot off the press! Windows 8 Release Preview is now available! Check out Windows News room at http://www.microsoft.com/en-us/news/presskits/windows/Default.aspx!
You can read Steven Sinofsky's blog post at http://blogs.msdn.com/b/b8/archive/2012/05/31/delivering-the-windows-8-release-preview.aspx
The Windows 8 Release Preview can be downloaded at http://windows.microsoft.com/en-US/windows-8/release-preview
Thanks and enjoy Windows 8! I am already!