According to Mercury News, scientists at Nasa's Ames Research in Mountain View were able to pick up nerve signals from tiny muscle movements and turned them into "commands that drive a model rover or perform a simple Web search."
"Although the work is very preliminary, it could someday be used in voice recognition systems and to help people communicate clearly in noisy environments -- from space stations to air traffic control towers. It could help people who have lost their ability to speak, or allow someone to chat with a colleague across a conference table without making a sound.
If, in fact, this technology progresses into what they say it will do, How could you prevent outside parties (besides the people who you are trying to communicate with) from picking up the signals? Although, this sounds pretty cool and innovative, How about if you thought of something and the nerve signals were picked up, then you decided that what you thought before was wrong?
Despite these questions, I would love the abilty to surf the Web without using my hands. Goodbye, carpal tunnel.