Today a group within Carnegie Mellon University have broadened our "smart touch" horizons. Touchpads and touchscreens - a thing of the past. Smartphones, smart watches, and smart devices of all sorts will be changed forever. This group has made a technology that uses your skin as a controller. Instead of swiping back and forth on the screen of your phone, you'll swipe back and forth on your wrist. Instead of scrolling on the screen of your watch, you'll scroll by brushing your hand. How simple. How perfect.