Lambda the Ultimate

Hi, I've released an app for writing OpenGL fragment shaders, while on the train or somewhere else without a computer nearby.

Paragraf

Since Apple's policy for writing script languages for the iPhone, it's hard to write your own language. A strange policy. Anyway I found one language with a compiler already on the phone. Do any of you write code on your mobile devices? What tools are available? This app is only for graphical experimentation and modifying the camera stream and images, so it's a bit limited.