remote-control quadricopter is a groundbreaking device combining the best of many worlds, including modeling, video gaming, and augmented reality. 
The Parrot AR.Drone
is remote-controlled by an iPhone and features a number of sensors, including a front camera, vertical camera, and an ultrasound altimeter. The AR.Drone can also be used in video games, such as AR.FlyingAce, a dogfight between two AR.Drones.
AR.Drone Details
Battery
* Fly time: 12 minutes
* 3-cell lithium polymer battery
* Capacity: 1000 mAh
* Charge time: 90 minutes
Motors
* 4 x 15 W electric brushless motors (3,500 rpm)
Construction
* High-efficiency propellers
* Carbon tube structure
Front camera
* VGA (640 x 480) CMOS camera
* 93-degree wide-angle lens
* 15 fps video
Vertical camera
* QCIF (176 x 144) High-speed camera (CMOS)
* 64-degree diagonal lens
* 60 fps video
* Horizontal stabilization
Altimeter
* Ultrasound-based
* Range: 6 m
* Emission frequency: 40 kHz
* Vertical stabilization
Internal guidance system
* MEMS (micro electro mechanical system)
* 3-axis accelerometer
* 2-axis gyroscope
* 1-axis yaw precision gyroscope
Embedded computer
* ARM9 RISC 32-bit 468 MHz
* 128 MB DDR RAM
* Wi-Fi b/g
* Linux OS
* USB socket
Dimensions
* Size: 28 x 28 inches with hull; 29 x 11 inches without
* Weight: 13.4 ounces
Parrot AR.Drone iPhone/iPod Touch/iPad Controlled Quadricopter