Apple gets to decide who is allowed to ask for the user's data. The user gets to decide (thanks to Apple enforcing required consent) if the user's data is sent. The collection is done by whichever ad service is being utilized in each particular case. It is the user's data, collected by the ad service. Apple is simply the conduit through which the exchange occurs (or is allowed to be requested to occur).
6/11/10 at 11:48am