Hi, I know a fair bit of OpenGL in windows, but only have experience with GLUT. When I get my Mac this christmas, I want to buy a book to help me adapt to programming opengl on the iPhone (and Mac). I've been told that writing code in C is good for portability, and Objective-C is only required for interface elements and interaction. Stephen Kochan's book on Objective-C is reccommended alot, but does it have anything on integrating opengl with mac/iphone apps? And what about Aaron Hillegass' book on Cocoa, does it include much on opengl? I'm not looking for how to program opengl itself, more how to use the tools to get an opengl game working in cocoa/cocoa touch.