Now, please don't jump me for this, I am merely musing. I am just wonder what the phones will be like in 2020. They cannot make them bigger anymore, 5.5" is pretty much the limit, with 5" being the sweet spot now. Maybe some company will make a 6" phone, but that'll be more of a freak size. And they can't increase the resolution anymore either; Note 4 has a huge screen and still has 515 PPI! They can't get much thinner... they're already very thin, how much thinner can they get? 5mm? After a point they come uncomfortable to hold. While watches are great, they won't be replacing the touchscreen smartphone form factor any time soon. So the only thing left is to increase the CPU/GPU/RAM and other internals. I wonder if by 2020, smartphones will be so powerful as to replace a computer for people? Wi-Fi AD and USB 3.1 will definitely make it a possibility to easily connect peripherals and monitors.