When I arrive at the AECT conference I will receive a USB device that uses Near Field Communication (NFC) technology. I can then link my Poken account with the Poken device by plugging it into my computer and syncing the two. Then as I meet people or attend sessions I can exchange contact information or receive presentation materials by holding my Poken close to their Poken or Poken tag to retrieve the data through NFC technology.
This sounds like a great way to maintain a professional network. Now, I do not have to worry about losing business cards or paying extra money for my overweight luggage (due to conference materials) on the return flight.