You just don't see such great documentation and guidance from other open-source projects :)
You can download the Composite Application Guidance for WPF ( PRISM ) RC1, which isn't expected to change much before its release in a couple of weeks.
Congratulations to the Enterprise Library Team for their release of Enterprise Library 4.0. A few enhancements and bug fixes in this release, but most importantly it comes with Unity IoC Integration.
A lot of the modularity, discoverability, and IoC Container stuff I like in the WCSF, SCSF, and Prism I use in my composite ASP.NET MVC applications.
Download new releases of the Smart Client Software Factory and Contrib Project for VS 2008.