Microsoft is just positioning itself to make Windows a first class platform for Web apps, just as Google is positioning ChromeOS. I can't understand how that so easily escapes people. I would be shocked if WPF and SL would be suddenly "deprecated" seeing as Visual Studio is built on it and it was a giant effort to create the frameworks. This is embrace and extend at its best, making Windows a first class application platform from multiple points of view - whether you are a nativr, managed or Web developer. Democratizing development to use DevDiv lingo. It sounds pretty cool. I will agree with one thing though: someone should outline the vision and pieces so that all the fear-mungering and FUD can be put to rest.