An Interface Concept That Allows the Blind to Text

Touchscreens have left the blind in need for a solution such as this concept. 

Tactile Texting by Dutch industrial designer L.A. Guuste Hilte is a concept
phone that lets you text blind. The keypad is actually a grooved disc about
the size and shape of a hockey puck, and you “type” letters by running your
thumb over the grooves; no eyeballs needed. 

Read the entire article at:
http://www.fastcodesign.com/1662207/an-interface-that-allows-the-blind-to-text

Link:
Tactile Texting
http://www.idportal.nl/Portfolio3/
http://www.designboom.com/weblog/cat/16/view/11332/guuste-hilte-tactile-texting.html