If you play 3D shooters on the iPhone long enough, you'll get used to them. Games like mc2, nova2, dead space are very intuitive. Touch controls are excellent for me. I find them easier than a game pad for console.
Is anyone else brushing up on their skills on Nova 2? I haven't played the game for ages. I usually play Mc2, Mc3. I didn't realize what an excellent game it is !