MicroAir Vehicles

Since 1986, AeroVironment has been developing small unmanned aerial vehicles (UAVs) for use in military surveillance, law enforcement, and civilian rescue efforts. The award-winning
Black Widow, developed with DARPA sponsorship, is a six-inch, electrically powered aircraft with a small camera that flies for 30 minutes at a range up to 1.8 km from the ground station while downlinking live color video.
Another miniature flying vehicle, an ornithopter dubbed Microbat, is in development. In its final form, Microbat is expected to weigh less than 15 grams, including controls and a miniature camera with down-link capability.
Amazing what can be acheived with an open cheque book !