kkleiner writes: "Wouldn’t it be awesome if our tablets and smartphones could have buttons that morphed out of the touchscreen, and then went away again when we didn't need them? It sounds like magic, but now it is reality. Created by Tactus Technology, a Fremont, California-based start-up, Tactus is a deformable layer that sits on top of a touchscreen sensor and display. The company is demonstrating the Tactile Layer publicly today for the first time at the Society For Information Display’s ‘Display Week’ in Boston."
Thus mathematics may be defined as the subject in which we never know
what we are talking about, nor whether what we are saying is true.
-- Bertrand Russell