"The micro air vehicle (MAV) is funded by the Defense Advanced Research Projects Agency (DARPA), which will use it for surveillance of US citizens eventually after testing on more acceptable societies like Iraq. No doubt." via: aftermathnews
"Harvard University’s tiny microrobotic fly, hailed by its creators as “the first robotic fly that is able to generate enough thrust to takeoff,”
"The life-sized “Flybot” reportedly has a wingspan of 1.2 inches (3 cm) and weighs a mere 0.002 ounces (60 mg)."
"The project is directed by Harvard faculty member Dr. Robert Wood. It has received funding from the U.S. Defense Advanced Research Projects Agency (DARPA), which hopes to gain access to micro-miniature surveillance technologies." via: deviceguru
-Further details found on Harvards Microbotics Lab's website.