Japan's Keio University has seen the future of touch interfaces, and it looks to be disposable. A research group at the school has its finger on a touch interface that uses paper as the point of contact. You could one day touch a museum ticket to the curved display, for example, to learn more about a piece of artwork.
What's more, because it uses shape deformations, the display can be operated by blowing or shaking rather than actual touch. A projector and camera create active 3D images, so the processing speed is fast, and input is immediately returned as output.
But don't take our word for it. Check out the paper interface in action in the video below.