“Obviously, you’re not going to read ‘War and Peace’ on your wrist. But for lightweight interactions, for casual glancing, it’s absolutely fabulous,” he said. “And I think this is the beginning of a very important category. With every bone in my body I know this is an important category, and this is the right place to wear it.”
The future is a big ass phone in your pocket (bag) and a 'watch' on your wrist for all the trivial / instantaneous interactions.
Nothing else required.