The Delfly II
This radio-controlled insect-like aircraft is actually a robotic dragonfly spy called DelFly II developed by robot jockeys at the Delft University of Technology in the Netherlands. It can fly for at least 15 minutes and can take off and land vertically, and can even fly backwards. Imagine this robot improved even further; its developers is planning to create a DelFly Nano with a wingspan of just two inches, making it effectively invisible. Check out the video after the jump.