The iOS-controlled PowerUp 3.0 paper airplane is a Bluetooth-enabled bit of fun. The kit attaches to a paper airplane you build using the included folding template, or simply clip it to a plane of your own invention. A tiny engine at the back of the propels the plane forward while a tiny rudder turns it left and right. The flight of hand-folded aircraft is controlled by the app, which also handles all the complex adjustments to engine speed so the plane doesn't fall out of the sky while banking. With a range of 60 feet and up to 10 minutes of flight time, the $50 PowerUp 3.0 is ready for all your aerodynamic acrobatics.