Geez, I wrote this last year and saw a saw a blog by Michael Arrington that reminded me of it:
United States Patent Proposal
Temporal Social Network
July 15, 2006
Method for connecting users in an online computer system based on their physical proximity in a temporal social network.
A method for creating a temporal social network where people enroll in the network by being in proximity to each other. A geographic defined area becomes the boundaries for these temporal social network. As members of the network are within these boundaries they may elect to become members. Once members in the network, the method herein provides online activities for the members and an active gaming environment defined by event the members are there to see such as a sporting event or activities while commuters are stuck in traffic. Relevant advertising is facilitated by the geographic proximity of the members of the temporal social network.
Pretto; John G. (Las Vegas, NV)
Human 2.0, LLC (Las Vegas, NV)