When is CoreGraphics appropriate for an iPhone game? I'd imagine it would be good for a slow moving game that's probably not 3D. What would make you switch from CoreGraphics to O …

I have to develop an application "Behavior like an Tetris game". I have never used "OpenGL" for the iPhone application developement. Application is something like this * Red / g …

I'm new to iPhone game development. I want to learn the basics of OpenGL ES. What's a great resource?