Ambient computing doesn't mean that all the computing devices can do the same thing, i.e. that a phone or a watch or a tablet will do everything a laptop can do. It means that distinct devices are integrated into a single experience in a complementary way.
> If you could wirelessly and seamlessly use the same device to do that work on a larger screen, powered by that phone, they would absolutely want to push that.
This vision works just as well if the larger screen is powered by its own computer instead of the phone.
