This is a list of all games utilize Open GL 2.0. If you know any game utilizes Open GL 2.0 please post here. And please note just because a game is 3GS exclusive doesn't mean it uses Open GL 2.0
need for speed shift only has slight enhancements ( shinier cars ) asphalt 5 has blur Speed forge extreme had advanced lighting and shadows too. adrenaline golf has great animated water. ( amazingly realistic )
I don't think Asphalt 5 utilizes Open GL 2.0, they just add blur effect which I think can be produced on Open GL 1.1. Correct me if I'm wrong but I don't see anywhere saying Asphalt 5 has enhanced graphic on iPhone 3GS/iPod Touch 3rd Gen. You are right about Speed Forge Extreme. I like the motion blur especially because it feels like you are playing PS3 racing games. When you are in motion, your surroundings become blur. Adrenaline Golf has amazing water effect but water only. The graphic on gold course is disappointing.
gameloft said they added a blur effect on 3gs. idk, i always wondered why asphalt looked slightly better on my 3g, than my friends's 2g.
future jet car stunts will have shader effects. i think most upcoming games will have some minor enhancements. full OpenGL 2.0 games are far away, though.