Has anyone ever come across a good weighty example of MVC implementation with Winforms?

I found some posts through Google, but they were more on the theory than on practical examples. I also found an article (late 2003) from Visual Studio magazine that had the downloadable User Interface Process Application Block. Unfortunately, the accompanying example is quite poor, and frequently 'violates' the intended objectives of decoupling.

I've built my own 'home-spun' methods for limiting code in a Winform or entry container (by placing it in a corresponding form manager class or a generic form handler class that reads control collections and some basic interfaces). They work, but I'd like to compare what I've done with examples that are out there - I'm sure there's still much I can learn.

TIA,
Kevin