If you keep up with multiple Microsoft technology bloggers, today is one of those days where you’ll see everyone posting similar posts:(.  Such is the nature of blogging.  I get to say what I want, but sometimes that means everyone else is saying the same thing.  Visual Studio 2008 and the .NET Framework 3.5 Service Pack 1 Beta are out!  Here are some links to learn "what’s what" about SP1:

Scott Guthrie’s comprehensive post:

http://weblogs.asp.net/scottgu/archive/2008/05/12/visual-studio-2008-and-net-framework-3-5-service-pack-1-beta.aspx

WPF-specific:

http://blogs.msdn.com/tims/archive/2008/05/12/introducing-the-third-major-release-of-windows-presentation-foundation.aspx

Brad Abrams’ has lots of screenshots of various features:

http://blogs.msdn.com/brada/archive/2008/05/05/visual-studio-2008-and-net-framework-3-5-sp1-beta.aspx