Tonight the MoS held an event called Face-to-Face Digital: Fusing the Physical World with the Digital World. The event centered around the nTag Wave produced by nTag. It is an intelligent badge that lets you optionally track other event attendees that you talked with and additionally exchange contact information. This is the second time that nTag has sponsored such a program at the MoS, the first being three years ago at the 2003 S-Games.
Based on pictures that I saw from the previous event the physical design of the system has changed dramatically from a puck based block to a more candy bar phone like format. The PDF linked to above has an example shot of the device. You track who you have talked with by holding the two devices up next to each other at which point you get a visual indication that they are exchanging information. Optionally during this process you can also hold down a button on the base of the unit which will initiate an exchange of contact information. This process requires both parties to be holding down the button. I found that to be a nice aspect. Requiring active participation from both users prevents accidental contact sharing.
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