As we said earlier this month, the VS 11 Beta and Windows 8 Consumer previews are available.  In the next couple of weeks I’ll write more about things to look for in the TFS Beta.  In the mean time, checkout Jason’s blog for a good overview of what you’ll find.  Here’s a bunch of useful links to learn more:

Visual Studio 11 Beta & .NET 4.5 Beta Announcement by Jason Zander

Windows 8 Consumer Preview Announcement (on the “Building Windows 8” blog)

Visual Studio 11 Beta Downloads (includes Visual Studio 11 Beta, Team Foundation Server 11 Beta, and .NET Framework 4.5 Beta)

Windows 8 Consumer Preview Download

Submit bugs to the Visual Studio, LightSwitch, or Blend Connect sites

Ask questions on the Visual Studio or Windows forums

Brian