The next thing for phones is... dual front facing, wide angle, cameras and dual high sensitivity microphones at the edge for stereo vision and hearing.

The devices will be able to be integrated into ultralight 'goggles' to provide live stereo vision with real time geo location graphics overlay for things like directions, advertising, etc.

Features will eventually include add on devices to see different spectrums of light including infra red and UV, super hearing through integrated earbuds, etc.

Eventually the devices will have cameras on the edges for eyes like an animal that can provide almost 360 degree view etc... and will just become a part of everyday wardrobe, like your watch.

Your watch will become the VR mousepad.