Note: Everytime I mention iPhone, I am in fact referring to iPhone & iPod Touch running OS 2+.
Just posted a simple example application source code and walk-through which can be found here.
openFrameworks 006 is now officially released! You can download a fat package for your system from www.openframeworks.cc, mac/linux/windows and now iPhone. I do recommend you keep an eye on the ofxiPhone SVN for updates and fixes.
What is this and what does it do?
ofxiPhone (along with ofxMultitouch & ofxAccelerometer) are addons for openFrameworks 006+ that allow you to develop for iPhone in plain old C/C++ just as you would on a normal desktop (mac, linux, windows). This means using the normal testApp.h, testApp.cpp, main.cpp; setup(), update(), draw(), mousePressed(), ofImage, ofTexture etc. and any other C++ classes you may have created. It also means that you can reuse your exact same code running on your desktop (mac osx, windows, linux) unchanged on the iPhone by just copying across your testApp.h, testApp.cpp, main.cpp and other source or resource files you may be using.