Can Braille be faster than QWERTY?

This new app is supposed to help blind people send texts messages and e-mails using a touch screen without expensive extra stuff. For this to work people have to hold their phones with the screens facing away from them and punch combinations of six buttons to form characters. It than speaks a letter out loud after it has been registered so you don't have to see the screen. 

This app is designed for blind and visually impaired people, who would have to spend a lot of money on different machines to help them do this. This Braille is so much faster than what those people would have to use now.

http://whatsnext.blogs.cnn.com/2012/02/20/can-braille-be-faster-than-qwerty-app-developer-thinks-so/