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Some guy in a lab coat had to add the X factor to it…
IEEE Spectrum: Engineers add texture to touch-screen devices
![utouch01[1]](https://msdntnarchive.z22.web.core.windows.net/media/TNBlogsFS/BlogFileStorage/blogs_msdn/davidmcg/WindowsLiveWriter/JustwhenyouwerethinkingTouchwasprettycoo_142E4/utouch01%5B1%5D_3.jpg "utouch01[1]")