More goodness for factory builders: you can now start to target non-technical factory users with Visual Studio 2008 Shell, it was released on 2007/11/21. For details and download links see the post on the VSX Team Blog.
Use DSL’s and other Visual Studio extensions without scaring people with all the “developer UI” in Visual Studio, while retaining full integration options within Visual Studio.
See also my original post on using the shell for factories.