Touchscreens are selfish lovers, taking your gentle caresses and impatient taps without offering a hint of feedback to you. We've seen attempts to change that, like prototypes from Toshiba and Senseg that add a bit of texture to a touchable surface, but now Microsoft might be looking to bring such dynamic tactility to the one of the biggest touchable surfaces: Surface. A recent patent application entitled "Light-induced Shape-memory Polym
