For my book IronRuby I’m working on chapter 4. That chapter is about doing WPF development with IronRuby. I started out with a straight port of Witty to IronRuby. As I was doing that the cogs started turning and I came up with a way to bring the rails style of development to WPF. I decided to investigate that route a little bit further and now I have a small framework that enables you to write WPF applications with the MVC paradigm. I decided to open that code up as open source and host it on github.