Interesting that Microsoft are abandoning native DVD support in Windows 8 to save money on licencing. Yet, its one of the few things that keeps me using Windows. Windows 7 does an incredibly good job at authoring DVD's from Windows Live Movie Maker projects and the ability to autoplay a DVD in Windows media player is much better than requiring a seperate program - which usually have an inferior GUI.
At the same time the new "Metro" desktop looks more like a Windows phone:
I think what we are seeing is a change to Microsoft's overall strategy with its future being in business computing and mobile devices rather than in home computing. Time will tell if this is where they end up.