Well, I have had the 3gs for 1 full day now and I have had the chance to try most of my games on it as well. Beyond the obvious faster loading times some games run a lot better. NFSU - runs a lot better, seems to sound better too. I find it a lot easier to control now. The frame rate is awesome. The Sims 3 - Seeing the difference between the 3g and 3gs actually offends me! They should have a warning "Runs like molasses on regular 3g" which equals painfully slow. On the 3gs it's actually fun and much easier to control! Sentinel Mars - One of my fav games so far. When there is a lot of screen action later on in a level it no longer stutters. Love it! Real racing - Biggest difference would be the loading times. Game appears to run slightly smoother but no amazing difference. Runs great on both iPhones. I have ridiculous amount of games I'll post comparisons if you want, more to come later!