It's a familiar complaint. Even as companies like Apple try to tie the computer interface back to the natural world, touchscreens are still woefully flat. But recent developments, including Senseg's new E-sense technology, could bring real-world touch into everyday computing.
Obviously, this is nothing new. Research into programmable friction has already yielded impressive results, especially in the realm of stickiness. But this concept accomplishes the same goal by using "tixels" or tactile pixels to create an electrical field you can feel. Your skin responds by feeling whatever the interface wants it to feel: Buttons, perhaps, or even the fur of a virtual pet.