[qwzybug]

The neat thing about iOS and MacOS, compared to Windows in VMWare, is that iOS apps are never 'emulated' on MacOS—they're 'simulated'. In fact, I'd wager that during its development, Angry Birds was run on a Mac far more often than on an iOS device. The iPhone Simulator is just a wrapper for x86 binaries linked against iOS frameworks.

If this is actually in Apple's plans, running iOS apps on MacOS wouldn't be much harder than making these frameworks first-class citizens... plus a whole lot of work reconciling the fundamentally different interaction, document, window, and application models. (Guess which of those 80 and which is 20. :)