OpenGL Headline News
star3map is an augmented reality star and planet charting app for the iPhone 3Gs. It uses your phone’s global position, compass, accelerometer, and the current time to display an image of the sky in whatever direction you point your phone. The full source is available. Some of it under GPL, but the r3 library uses a BSD style license, and it includes Sean Barrett’s truetype and image loading code which is public domain.