Weberence.com

Ambient is going to produce a revolutionary device. The Audeo is worn on the neck and can read the signals that the brain sends to the vocal chords. Even if you do not speak these signals are send so Audeo can read them and convert them to speach.
Till now Audeo can recognise 150 words. See [...]

Its probably one of the few books that you do not have to read it to become fascinated with it. As you quickly flip the pages of the ?Rainbow in your hand? a rainbow appears.
This idea belongs to a Japanese guy called Masashi Kawamura and it costs about 7 euros.
See the video below