The proof of concept project was a success! We have a go as of today to begin work on building the application. Will take most of 2007, but will be a great project to work on. XAML, WPF, WCF and WF... Can't be on more cutting edge Microsoft technology. I have to say that the PoC that we did really shows how this new technology takes a very difficult assignment and make is more reasonable for the rest of us to code these complex solutions. Will really allow us to focus on the business needs of the system instead of spending all of our time trying to figure out technological hurdles.