I've had this dream of unleashing a swarm of RC cars (or, better, blimps) that would carry billboards or blast ad messages and am glad to see someone is actually doing it. CoolzOr has pictures of a new campaign for Miniature Antwerp City, and one of them shows a radio-controlled truck carrying a billboard.
Earlier:
Monetizing Robotic Swarms
Hacking Shopping Carts for Advertising Bang
