Touch Screens for Cyclo-computers?

touch%20screen.jpg I saw this touch screen display for a GPS unit while walking about the Sands Expo during CES. It’s clear to me that the technology is very close to having touch screens for cyclo-computers. I’m not sure if that would work out well, since the tactile feedback of actual buttons allows one to actuate the computer functions without looking. That of course could be important for cycling.