With systems like the Kinect and Leap Motion, controlling a gadget with just the wave of a hand is starting to become much more commonplace. The one drawback to those gesture-based devices however is that you never actually touch anything. No matter what you see on the screen, you're still very aware that you're just moving your hands through the air. The Pittsburg branch of Disney Research may be able to change that with Aireal, a low-cost haptic system which fires out small rings of air that allow people to feel virtual objects.
Read the full article: Disney's Aireal delivers precise tactile feedback out of thin air