Microsoft, seeing an opportunity in the very young and undefined "tactile touchscreen" space, has filed a patent for pixel-sized plastic cells that can give a sense of touch and feel to tomorrow's touchscreen devices.
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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/KdnjRu21vx0/microsoft-enters-the-tactile-touchscreen-world-with-unique-uv-light-interface
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