Since Karl Shifflett and Jaime Rodriguez came to the Bay Area for a Bay.Net education day on how to build line of business apps with WPF using Model-View-ViewModel, I have been regularly checking out their blogs, and I was very excited to learn that they are taking it on a world tour! If it happens in an area near you, don't miss it; it was one of our most successful events to date, and it's totally worth it.