We like quadcopters here at Digital Diner. They are these truly amazing flying machines that are essentially 4 rotor helicopters. The AR Drone from Parrot is interesting because it it the first attempt at a mass market toy based on this technology. It has some very advanced features like the ability to hoover autonomously, and stream video to an Android or iOS device. It is sold through standard retailers like Brookstone.
I just saw the new version at CES and took the above video of the AR Drones "dancing" to some music. The new version has some nice features like more efficient motors and a 720p front facing video camera. perhaps most impressive is the ability to do acrobatics like the rolls that you see in this video. watch and enjoy.