I just had a comment from someone at memo.tv, and the links were cool enough that I’ll just share the whole comment. Definitely looks worth checking out:
Hey, you’re posts on cocoa are great and very useful, and cocos2d looks really cool too. But I thought I’d let you know (in case you didn’t know and might find it interesting), that you can develop for iPhone using openFrameworks and C++ (syntax much closer to AS3 than ObjectiveC). http://www.openframeworks.cc/download
An example of developing using C++/openframeworks for iphone can be found at http://www.memo.tv/openframeworks_on_iphone_sample_1
And also for openframeworks there are many addons, including some to wrap up opengl commands and also handle or draw splines.
http://www.memo.tv/ofxmsaspline
http://www.memo.tv/ofxmsashape3d
http://addons.openframeworks.cc/P.S. and I’m not just posting this to plug my own site 😛 I really do think many people wanting to develop on iPhone can greatly benefit from this! And since openframeworks and ofxiPhone are opensource, hopefully contribute and develop it even further.