I wrote a piece for TheFeature about RedTacton, a personal area networking (PAN) technology that makes use of the electrical field that naturally surrounds the human body.
NTT believes there are many uses for RedTacton beyond being a replacement for certain Bluetooth or IR applications. It could for example, be used as a kind of RFID. When you touch a door handle at a secure facility, the RedTacton transceiver would look at the ID number stored in the mobile device in your pocket and decide whether or not to let you in. Or a bottle of medicine might sound an alarm if you are not the person to whom the pills have been prescribed.
