See, this will be where it gets interesting. With the iPhone, Apple makes no money on gaming. They don't provide any, and people either use web-based games, or they hack their phone to get NES and other native games on the phone.
However, the iPod is different. Or...was different. Will Apple be content to make the money on the games for the classic and nano, and leave the touch to the hackers? Or will they start ramping up more protective measures for both the touch and the iPhone?