<i>Quadricopter</i>

Promoters of the AR. Drone quadricopter, the first quadricopter controlled by an iPod Touch, iPhone, or iPad, control the helicopter at Brookstone's Rockefeller Center store on November 10, 2010 in New York. The $300.00 USD AR.Drone is a helicopter with four separate propellers made of carbon fiber and strong plastics. Photo: AFP