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Gel-filled touchscreen creates real buttons on demand
There's just something about the feeling of physical keys that haptic feedback simply can't replicate on touchscreens. It's part of the reason people buy keyboard accessories for tablets, or Ryan Seacrest's strange iPhone case. It's also inspired some to try to figure out a happy medium between the freedom of touchscreens and the tactile joy of real buttons. Tactus' fluid pocket approach showed promise (the company makes an iPad case that gives the on-screen keyboard a physical presence), but it's ultimately limited by a predefined layout. Now, though, a group of researchers at the Technische Universität Berlin have come up with a way to create soft, temporary buttons of pretty much any shape and size, anywhere on a touchscreen display.
