The device pictured in the image you see above might look a bit primitive, but it’s actually a prototype built to showcase technology that may very well be the future of touchscreens. Researchers from Technische Universität Berlin in Berlin, Germany built the device, which offers a brilliant solution for touchscreens by giving them real physical buttons that appear temporarily when you need them, and then vanish when you don’t.
Read more here:: Boy Genius Report