On another note, based on feedback from users, it looks like Apple A5 users get pretty much the XBox version including it's higher quality textures, higher polygon models, and specular lighting. Accurate real-time reflections still may be lacking so the XBox version probably remains the definitive version. Apple A4 users generally get the higher quality textures for close distance objects, only get the high polygon models for Claude, lack specular lighting, are missing shadows, traffic lights, and car brake lights. Still, Apple A4 devices are still arguably closer to the PC version than the PS2 version.
EDIT: Apple A5 devices also get native resolution graphics while A4 devices are sub-native in game although they use native resolution menus. A5 devices also get blood effects.
I downloaded it and did the first mission, things in the post are true about the graphical capabilities of the A4. No blood, no lights, no sunshine so far on my iPhone 4. But we're getting an iPad 2 soon so I will get to play it with full graphics at some point.
Anyway though, it did run pretty well and once I figured out how to move Claude around it become fun again. Might spend an hour or two messing around on this. It is incredible that the game that revolutionized the PS2 is now playable on a phone, who would have seen that coming circa 2001?