Re: Keypad on a watch?
My point was the nano (or is it shuffle) kept a touch screen but didn't try to cram the normal OS and apps into a tiny screen. Rather they designed a special UI for tiny screens. It is not hard to envisage a touch UI on a watch screen usable for entering phone numbers, and it is certainly not hard to imagine being able to swipe through your contacts or otherwise select who to call. OTOH, SMS maybe not. But a device which is a combination phone-fitness gadget could do OK, given the success of FitBit et al.