Macos embedded != Macos X UI.
I feel the iPhone (whatever its called) will have a derivation of the ipod or frontrow ui's. In fact this what i think Apple have been experimenting with frontrow. The concept of multiple UI's on top of a standard core of code. It will in no way resemble the complexity of windows CE.
Apple's success with the iPod had largely to do with the fact that it has a custom OS for a particular device. Cramming OS/X into some device to turn it into some general-purpose solution to a problem that doesn't exist only means you turn out junk. Every "smart phone", PDA, etc that has tried to run some version of windows on it feels clunky and never does what you want it to do.
To paraphrase Alan Cooper: What do you get when you cross a computer with a phone? Answer: A computer! And from a human interface perspective, it will suck.
I don't want a phone that can double as a computer. I have a portable computer, I don't need that. Putting some stripped down version of OS/X on a phone won't just make the phone more functional, it will also invariably make it more difficult to use. Apple has succeeded in making great devices because their strategy was to "delight the user". Microsoft's smart phones are consistently irritating to use, because Microsoft's strategy was "windows everywhere, the user be damned."
Here's hoping Apple doesn't go down the wrong road in the future.
I feel the iPhone (whatever its called) will have a derivation of the ipod or frontrow ui's. In fact this what i think Apple have been experimenting with frontrow. The concept of multiple UI's on top of a standard core of code. It will in no way resemble the complexity of windows CE.