Seems that scientists are working on other methods to control items around us without using our hands.
The tongue-controlled wheelchair, a mind-controlled wheelchair, and now, an eye-controlled MP3 player.
It will need to function with a custom-made pair of headphones that feature powerful microchips (surely weak ones aren't up to the job?) to do the job.
All you need to do is roll your eyes upwards or downwards and the volume level will change accordingly, while a couple of quick eye jerks to the right or left will forward or go back a track. Do you think touch-based controls will soon die out (buttons, touch screen displays, etc) as such developments come about, or are buttons here to stay for good?