From BotJunkie: "The University of Maryland monocopter can take off from the ground, hover, fly controllably, and land without killing itself. The key was a lot of research into the flight characteristics of the seed pods themselves, which enables the monocopter to autorotate just like the real thing. Obviously, the camera isn’t really useful for surveillance at this stage, but that’s solvable. Researchers suggest that the craft could be airdropped, autorotate for a while, and then be controlled remotely for “defense, fire monitoring and search-and-rescue purposes.”"
And also from BotJunkie, "a prototype of a micro air vehicle called AirBurr that comes from the Laboratory of Intelligent Systems at EPFL. The version in this video is a remote controlled prototype, but the design is intended to be autonomous, with robust collision recovery in indoor environments. AirBurr is a sort of cross between a helicopter and an airplane, with a bunch of airplane style control surfaces and a horizontal plane lifting rotor like a helicopter. "