This concept video by San Francisco design house Aatma Studios starts off pretty well: they envision future iPhones and iPads using a combination of a built-in pico projector and IR sensors to project a light-based keyboard on a flat surface. Just type on that projected keyboard as you would on any other and the iPhone will register your keystrokes.
Here’s How Apple Could Use Pico Projectors And Sensors To Give iPhone 5 Holographic Keyboard [Concept Video]
