It would be pretty cool if we could make something like the folding tablets in Westworld.

I think phones and tablets will keep getting thinner, because you can always buy a cover to make it bigger. And it's better if more of the bulk of the phone is protective material rather than sensitive electronics.

I think eventually phones will basically be just a display, with no ports (wireless charging only), no buttons, and then you'll get covers with extra battery, ports, or whatever you want.