Some Israeli nasal researchers at Weizmann Institute of Science revealed their 'sniff controller' this week, a software and mask that measures nasal pressure to control devices. Users can control wheelchair joystick with surprising precision and a alphabetical on screen interface/keyboard . The keyboard is likely the most important advancement, by giving patients with locked-in syndrome (a la The Diving Bell and the Butterfly) the ability to communicate. Best of all, this new technology is inexpensive compared to alternatives on the market; while a Stephen Hawkins type of eye-tracking system can cost tens of thousands of dollars, Weizmann scholars reportedly pieced the prototype package together for $358.
See the youtube videos below about the new technology