TouchDevelop is powerful as hell. It's not VC++ by any means, but you can access all of the phones features and data, and develop quite complex applications without actually typing any code. Putting that into Windows 8 Desktop would be a great move, and allowing those scripts into the Marketplace (or someplace where they can be sold and marketed) would be even better. Right now there is a repository for the scripts, but it's sorely lacking in features compared to the Marketplace.