Petecube

Current audio/visual equipment has minimal tactile feedback while acoustic instruments however have a much richer tactile palette. It is this variety of touch sensations that PETECUBE (PETE stands for Personal Electronic Touch Experience) aims to bring into the digital realm.
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Each petecube has a different combination of sensors and actuators that are used in real-time to generate sound, image and haptic feedback.

Movie 1 and 2.
By Peter David Bennett.