First steps on the iPhone
Here are the results of my first tries with ObjectiveC + Cocoa2D + OpenGL. Feels nice and pretty fast and I like the “strange” look of the ObjectiveC language. I implemented a small particle system based on a CocosNode with OpenGL, 10000 particles moving with a decent framerate! Second I ported an existing fluid solver to ObjectiveC, there is a lot to optimize, that’s why it’s running only at 30 fps. I like experimenting with this platform, more to come…

Stardust particle engine + ND3D
Allen Chou made a beautiful and pretty fast open source particle engine named Stardust. Just have a look at the examples, you can customize the output in various ways via xml configuration. So in case you need an easy to use particle engine for your next project, I suggest you take a look at his engine. He also added an extension to use it together with my ND3D engine.