In Touch Screen Technology News: German researchers recently built a touch screen prototype featuring a layer of gel that hardens into temporary buttons. Users can feel and use the buttons to interact with the display. http://www.technologyreview.com/news/541486/make-your-own-buttons-with-a-gel-touch-screen/
Twitter:
German researchers built a touch screen prototype with a gel layer that creates temporary buttons users can feel. http://bit.ly/1G3neYU