Well there’s no such thing as a touch-friendly game. As a game programmer I can tell you that in terms of touch the only games that are really viable are ones that we call one-button and click-and-drag games. We can pretend like iOS and touch are new and different, but ultimately it just does the same thing, which is convert input into something that the computer can understand. It just so happens that what the computer can understand in iOS isn’t much different than what the computer can understand in OS X, except for the fact that it can understand less. The only way to make finger friendly games is to make very simple games or at least don’t deviate from these traditional control systems of casual games. Most game developers are more interested in the accelerometer than the touchscreen. If you look at real computer/consumer gaming, there is almost no interested in touch-only gaming with either game players or hardware/software companies, but there is a lot of interest in movement. I also understand that touch is just a stop-gap technology, and better thing are on the way. It doesn’t make such for good developers to develop touch gaming, but there will still be plenty of little guys trying to get our hard earned dollars with half-baked releases.