Hmm, or maybe not. http://science.howstuffworks.com/brainport2.htm That picture's not really sellin' it.
You can get the same input via the auditory channel. All you need is webcam and software, or a Series 60 mobile phone:
Emotive wishes it were EEG; I remain unconvinced. Same goes for the OCZ nia: http://www.ocztechnology.com/products/ocz_peripherals/nia-ne...
What I really want though, is that 100x100 tongue point video camera that Hawkins mentions in "On Intelligence".