This past Friday we released Beta 2 of Visual Studio that contains the .NET Framework 3.5. Get it here. This releases stabilizes a lot of the stuff which had been in the previous releases, and includes some of the new tools, like the WCF test client. The main feature relating to WF is the introduction of the Workflow Services project templates which contain a complete, working implmentation of a WCF service as a WF workflow using the new send and receive activities.
