We had a blast playing with the PowerUp Toys' smartphone controlled Paper Airplane Kit. You start by folding a paper airplane. Then attach the Bluetooth-powered module and pair it with your phone. You can fly for about 10 minutes of battery, but recharging only takes about 15 minutes. Pilots can steer by tilting an iPhone left or right. This airborne fun is currently being funded on Kickstarter and is due to hit the market in May for $50.