The next version of Visual Studio, Microsoft® Visual Studio® 2008, will provide an industry-leading developer experience for Windows Vista, the 2007 Microsoft Office system, and the Web. In addition, it will continue in the Microsoft tradition of development language innovation. To enable early feedback, this page provides links to prerelease versions of Visual Studio 2008, and for technologies that we plan to include in it. As previews of additional technologies become available, we will make them available from this page.
You can download the beta 2 release from the following link
http://msdn2.microsoft.com/en-us/vstudio/aa700831.aspx