SwarmLocal 1.2 for iOS, a mobile app currently available in the Itunes marketplace, lets you form instant groups of people in close geographical proximity. Allowing an instant channel of mass communication among people sharing a common interest/goal and in close proximity opens the door to a myriad possibilities of teamwork.
SwarmLocal introduces the concept of 'swarming'. Swarm behaviour, or swarming, is a collective behavior exhibited by animals of similar "size" which aggregate together, perhaps milling about the same spot or perhaps moving en masse or migrating in some direction.(Source - WikiPedia)