Without jailbreaking, I would not own an iDevice (though iOS 3 and 4 have gone a long way towards addressing the problems I jailbreak to bypass), but an Android instead.
That is why I had such high hopes for Gameloft's IAP model. Jailbreaking without piracy would be the perfect marriage of convenience, power and usability, while still ensuring that developers maximise their profits.
Vocalist of Neverlast
Game Center/OpenFeint/Plus+/[insert arbitrary game network, online character or multiplayer account here]: Ayjona