One of the many processes we would like to improve for next year's Office 2.0 Conference is the exchange of contact information among participants. We're trying to make it paper-less, without requiring any custom software to be installed on the mobile devices used by attendees. After looking at many different options, we believe that 2D code scanning is the best one. Here is the scenario:

A 2D barcode (DataMatrix Code, EZcode, QR Code, or similar) is printed on all attendee badges. Attendee A and Attendee B are both registered on the office20.com community website. Their respective profiles contains all the information usually found in a vcard. Attendee A wants to get Attendee B's contact information. Attendee A takes a picture of Attendee B's badge with her camera phone, and sends it as an email attachment to id@office20.com. A reply email is automatically sent back to Attendee A with Attendee B's vcard. Attendee A can also log on to the office20.com community site and download all her vcards at a later date.

In order to implement such as scenarion, we're currently looking at services like ScanLife and scanR. If you know others that we should take a look at, let us know.