The idea is simple. Tablet and phone projectors in mobile devices and laptops so you can give presentations, see movies or just work large screen whenever a wall is near. Even tiny rooms, such as toilets, become screens. While we wait for more intelligent nanotechnology materials, we could combine these projectors with gestures based handling capacities to make use of programs we project. Just like this great tool; The Maptor, but integrated in a mobile device. Pretty awesome!
Apple, Google, Samsung, Sony, what are you waiting for?!
webnu 
Oh, and it’s good for the neck too…