[ Forget bluetooth and rfid. This is the future.
Ok, I'm kinda kidding, but it's a very intriguing technology concept... one that changes some of the usage modes and privacy concerns associated with existing tech like bluetooth, rfid, etc. If my phone and my headset can comm over my skin, i don't have to worry about "bluejacking"-type attacks unless someone physically touches me, which is a more invasive procedure, and one i'm likely to notice.
Some of the other applications they note, such as user authentication and access control via touch, as well as business applications like personal data transmission on a handshake, are compelling.
The idea of data transmission via the body itself isn't brand new, of course, but i saw this today and thought it was worth sharing.
I envision the Japanese tapping a vending machine with an index finger to get their munchies while we're still trying to flatten a dollar bill on the edge of a table. -k]