Watts Martin on Apple’s responsibility to users of iOS (with the Path address book hubbub as the central issue):
Apple has explicitly made the case that a platform advantage of iOS is that Apple does verify that developers aren’t being shady dipshits. […] Once you’re pitching that as an essential platform differentiator—and I think it’d be hard to argue Apple doesn’t make that pitch—then “is it Apple’s job to keep developers from being shady dipshits” is not the right question. “Why do apps only have to inform of you of some potential privacy issues, not all” is the right question.
That’s a really good question. Also see his comments on those dialog boxes that people are suggesting (like the ones used for location services) because he brings up a damned good point there.