I transitioned to iTouch 2 months ago putting aside my 810. I am an old guy so my idle gaming experiments are probably without merit to you. But, I have been impressed by the quickness and smoothness of the games I have tried. Graphics are great. Some of the games challenge my eye-hand coordination with the small form-fit-function but that just may be a generational thing.

In comparing my iTouch to my Android Incredible phone, Apple apps are significantly more smoothed and polished, have better GUI, and are surprisingly 'deeper' in content and complexity.

I'd recommend the maximum memory model that fits within your budget.

Hope this Helps...ForeverNewb