Touch technology has come a long way in the last decade. Just six years ago, most phones used traditional keypads; today, almost all smartphones have a touchscreen, and the technology has spread to tablets, handheld consoles and laptops as well.
One thing still lacking in touchscreens, though, is any kind of sensory feedback; you cannot feel the keypad on your iPhone, nor the action buttons when you play a game on your Android tablet. You can't feel the icons on your home screen, or the texture of your photos.