This is genius!!
A company in American has created technology for touch screens that can make "lumps" appear on the screen when needed.
The main demonstrated purpose for this at the moment is keyboards. When needed, the keyboard will pop up, as usual, but it will also have "buttons" physically manifest themselves on the screen.
See the video here:
http://www.bbc.co.uk/news/technology-20970928
New Touchscreen that can dynamically make physical buttons
Moderator: dingo