New Touchscreen Creates Physical Buttons That Appear and Disappear(tgdaily.com)
tgdaily.com
New Touchscreen Creates Physical Buttons That Appear and Disappear
http://www.tgdaily.com/mobility-features/63829-mobile-tactile-tech-gets-physical
1 comments
This is a bit old (June 2012). Here is a more recent CES '14 video: https://www.youtube.com/watch?v=9iFvq6826mg