Touch is slick and easy but it’s not for everything. And it’s already going out of style. The new kid in town is a natural user interface, Post-Touch – an interface that goes past the requirement of touch and can detect gesture usually through a near-field depth camera.
The difficulty, of printing an actual phone is, of course, printing the electronics that go in the phone. The current hurdle is designing an ink that not only conducts electricity, but does so in a controlled manner. Xerox and Optomec have some cool solutions.
Smartphones are so much more than the average computer, and the magic lies in the sensors. Unlike traditional computers, smartphone can sense location, position and acceleration and so much more. This is a huge, technological leap forward that enables many applications that were not possible before.