at the touch of your fingers

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this sounds pretty promising:
Jeff Han gave an amazing demo at ETech, showing a multi-point touch-sensitive display.

While touch sensing is commonplace for single points of contact, multi-touch systems enables a user to interact with a system with more than one finger at a time, allowing for the use of both hands along with chording gestures. These kinds of interactions hold tremendous potential for advances in efficiency, usability, and intuitiveness. Multi-touch systems are inherently also able to accommodate multiple users simultaneously, which is especially useful for collaborative scenarios such as interactive walls and tabletops.

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