> A student at Goldsmiths, University of London has been able to create an invisible, virtual keyboard for iPhones by using the device’s built-in accelerometer to pick up vibrations caused by tapping or typing on a surrounding surface area. As you can see from the video demonstration above, the “Virbrative” software developed by Florian Kraeutli (on a jailbroken iPhone 4) allows him to measure the strength and frequency of vibrations and then map them to iOS’ onscreen keyboard.
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