The Tiny Graphics Engine Tigre has been updated with a lot of new demo applications and sample code. Tigre is a free graphics engine that allows to develop fast and reliable 2D and 3D applications bases on OpenGL ES.
There are currently 11 demo applications that shows what you can do with Tigre. The code of those samples is available too to get you some help getting started. Tigre is targeting to get a full featured rendering engine for advanced games and interfaces. Although the engine is still under development you could create already some awesome applications as the demos shows. Please tell me if you’re missing any features so I can add them to the "to do" list.