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To say that MS is now implementing this misses (IMHO) the point of this piece. As I read it, Phil is asking for a simpler UI for users; basically he's asking for iOS. THAT is the important thing. Sharing a CPU and RAM is a pointless, idiotic, distraction. CPU and RAM is cheap and getting cheaper; there is utterly no need to drive your 27" screen using the CPU (and all its thermal constraints) built into a phone. What MS is offering is the exact opposite of what Phil wants --- you can keep your old Windows, with all its problems and complexity and, hey, we'll add a whole NEW LEVEL of complexity to that... So how would one implement Phil's vision? Step one would be a dramatically simpler,more secure OS. This is essentially what we have today in something like iOS. If ALL you care about is the vision, then we're done. But if you feel that an additional important part of the vision is large screens and keyboards, then what you want is seamless interaction between these. That is ...