I'll bet you never think about how difficult it is to use a cell phone if you're blind, do you? So selfish. Well, luckily for the blind everywhere, professor Nobuyuki Sasaki does, and he ended up designing a new type of phone that uses Braille and vibrations to allow the blind to use it easily.
Using tactile feedback in the form of dual vibrating mechanisms, the phone makes dialing numbers much easier for those who can't see it and also makes "reading" the screen possible. Not a bad idea, not a bad idea at all.