Imho, there are only two unsolved problems in mobile devices: (1) maximizing screen size (in a portable form factor) and (2) input method. Anything else on the

Imho, there are only two unsolved problems in mobile devices: (1) maximizing screen size (in a portable form factor) and (2) input method. Anything else on the hardware side is mostly noise. If I had to futurism bet, it'd be on eyeglass AR + pocket device being the next major change. With input method for that still tbd.