We reported about wearable personal smart badgets technology before: CharmBadget and InfoBadge.
nTag Interactive seems to be the most sophisticated solution that actually is available on the market.
nTag's solution provides the wearable tags, the radio system, and the central server. Users interact with the tags through the LCD displays and through the three control buttons. The tags interact with each other through an infrared connection. nTAGs communicate with the central server through the radio system, which uses RFID.
The central server holds the master copy of all the participant profile data. One of the features is that the badges display which interests two users have in common when their badges are in contact via the infra-red interface.
nTAG Interactive, LLC was started by Rick Borovoy and George Eberstadt based on Mr. Borovoy's PhD research at the MIT MediaLab, in collaboration with Brian Silverman, Fred Martin and Professor Mitchel Resnick.
Human Subdermal RFID Chip - VeriChip
Gadget Finder and Kinder Finder Technology
Nokia Mediallion I and Nokia Mediallion II - WAU!
Don't Miss: Find a Nintendo NES Classic in stock