Coming from Clever Coding, Paper Pilot was originally released on the Apple App Store on January 12th, 2009, and now just got updated with a polished interface and adjusted control of those amazing paper airplanes that you can fly inside your office! Unfortunately, we're talking about a virtual flight, on your iPhone's display, but it's better than nothing, anyway...
The story is very simple and funny - "In the game, you fly a small paper airplane around your offices, your home and even the sewer. The controls are simple and intuitive, you just tilt your device in the direction you want to fly. Swiping your finger across the screen controls the throttle allowing you to accelerate through the levels at break-neck speed."
I don't know if this has been done already, but seeing this app in action made me thing about a useful amazing paper airplanes app, more like a tutorial - a guide for building your own paper airplane models, and maybe then share your result using the built-in camera over the Internet. Any iPhone developer up to this task around? ;)