Things are looking great with the VS.NET integration piece. An MSI package now installs the relevant assemblies and registers Workspaces with Visual Studio. On loading from source control, you're prompted for Passport credentials, the Workspace you're using and a local folder, and everything flows on from there.
The UI is still subject to change, but having this functionality in VS dramatically speeds up the process of developing in a Workspace. Of course, not all of the features available on gotdotnet.com will be exposed through Visual Studio just yet, so we're also working on a whole series of improvements for the Windows Forms control too.