Ever hear of a program called "BlackRain" Also known as "JailBreak" It's a program that copies the ipod touches Operating system and enabling it to download apps for free. Illegal of course but everything that's free is illegal.
If he's going into app development, I should hope that he's heard of those.
You had better have a pretty good idea as to how you are going to sell this thing, if it's a paid app. Consider releasing it for free and offering DLC.