iPhones are already fun devices to use. But there are a ton of awesome toys available for them. Remote-controlled toys that are compatible with the iPhone are nothing new. These two iPhone-controlled airplanes certainly look fun to play with:
SmartPlane: a smartphone controlled RC plane. It is crash-proof and offers you intuitive controls. With FlightAssist, you will have an easier time controlling this.
PowerUp 3.0: turns your paper airplanes into remote-controlled ones you can guide from your iPhone. It has a crash-proof design. All you have to do is bring your own paper planes.
We will surely see even more sophisticated RC toys for smartphones in the future. For now, you can have lots of fun with these RC planes.