The world's first smartphone for the blind that features a display capable of converting text and pictures into Braille and raised patterns has been invented in India. Based on Shape Memory Technology – a concept whereby metals expand and contract to retain their original shape – the phone's screen has a grid of pins. These pins move up and down based on the text or display to be represented."
http://mobile.slashdot.org/story/13/...ented-in-india
