“Spatially Targeted Communication and Self-Assembly,” a work by Nithin Mathews, Anders Lyhne Christensen, Rehan O’Grady, and Marco Dorigo, from Universite Libre de Bruxelles and Instituto Universitario de Lisboa, was presented at IROS 2012 in Vilamoura, Portugal. The video shows their research on swarm robots that team up even with a flying AR-Drone, in order to fulfill combined tasks together. A really nice aspect is that the drones working together as a group are highlighted by using different light colors. As the ground drones are not able to scan large areas, they are directly cooperating with the flying AR-drone to get a detailed overview on the sourounding area. You can find details on this work on Spacially Targeted Communication and Self-Assembly within their recent paper.