The ZANAO Drone ($219) is small, autonomous, and developable. Zano may be the most sophisticated nano drone. It allows you to capture aerial photography and HD video all on a platform small enough to fit in the palm of your hand and smart enough to fly all by itself.
“A number of sensors work seamlessly together to allow the ZANO to avoid obstacles, hold its position and know where it is in conjunction with your smart device, at all times.”
Basically, this means that wherever you and your smartphone go, the ZANO is sure to follow. It also means that on its way it will maintain its altitude and avoid objects without user input. It also comes with a “Free Flight” mode which allows you to flight it using an on-screen joystick. The Kickstarter campaign for the ZANO is currently going on now.