iOS devices use the same PowerVR GPU family as many (most?) Android devices. Is there evidence suggesting they did their own driver? I guess one could tell by c

iOS devices use the same PowerVR GPU family as many (most?) Android devices. Is there evidence suggesting they did their own driver? I guess one could tell by comparing what kind of GLES bugs exist in iOS vs Android. edit: seems Apple's docs refer to Imagination's web site for GPU programming details, which would suggest they're using imgtec's driver. (http://developer.apple.com/library/ios/#documentation/3DDrawing/Conceptual/OpenGLES_ProgrammingGuide/OpenGLESPlatforms/OpenGLESPlatforms.html http://developer.apple.com/library/ios/#documentation/3DDraw...)