As a preface, I am about to describe something I personally view as
absolutely horrific. Please, dear reader, in no way interpret these comments as approving.
Privacy is a luxury. It's something rich people buy and poor people can't afford to concern themselves with. Apple sells a luxury product, and has no particular stake in invading customer privacy at the moment (iAd was never successful enough to change that). So they add a feature to their status symbol to address the concerns of their customer base and work with a partner company that can actually deploy it.
