I think Microsoft got the point with their tablet-orientation fullscreen-only-apps, driven by touchscreen interfaces, but agreed, forcing everyone into that (currently coupled with the dual-old-desktop-mess) is ridiculous, user-hostile and typically Microsoft. This inofficial Windows 9 concept does not really help either.. IMHO they are looking for what tiling window managers (http://en.wikipedia.org/wiki/Tiling_window_manager) have implemented since a long time (without being driven by the touchy-concepts), without taking away any freedom like Microsoft always does it, because MS thinks they know what's best for their users? :
• Provide automatic placement for windows, fullscreen, halfscreen, spiraled, any layout which makes sense for you. • Have the nice side-effect that they are much more controllable by keyboard only, increasing productivity even more (at least for developer's kind of work) • Provide the freedom, that if you want to, you can just take windows and resize them freely like default window managers
Introducing and playing with new concepts still is the right, however i think MS should stop forcing users into every new concept, but leave the freedom for the advanced user to customize to their style... if i have ever to go back to windows i hope there is a tiling window manager with the features i am accustomed to ;)