Wow, someone finally commercialized body pan technology! Now, here is the issue. If my bluetooth system had the same cryptographic properties would I need this. I could still use touch as a user interface in most device applications. You could have a doorknob detect when it was touched. And an RF transceiver is going to be more comfortable then something which must make good physical contact with the skin. The only applications for which this would not work would be person to person handshake data sharing... RedTacton | 
