March CTP Released
The latest CTP is available for the Visual Studio "Orcas" release. There are a lot of new features in this CTP across the .NET Framework, but I don't recommend that WCF developers make the jump quite yet. There are some issues with CLR generics and a few other changes that break WCF pretty annoyingly from what I've seen. You may want to wait for something more solid in the next beta release.
