However, they wish to carefully control the advertising on iOS, if you want to uniquely identify a user for retargeting purposes, well, tracking cookies are evil, but iAd is good!
https://developer.apple.com/iad/my-audiences/iad-my-audience...
>In the spring of 2015, iAd plans to provide developers with unique audience insights about the users in your segments, viewable in iAd Workbench—including their distribution by gender, age, geography, and iTunes Preferences. With audience insights, app developers can find new users with similar characteristics to their existing customers, and tailor messages for retargeting campaign
Did they abandoned this or not? Seems contrary to their current "we aren't using your data" mantra
You're right, it wouldn't be hard, but they aren't doing it. Why? Maybe because they wouldn't be able to use this talking point or maybe they plan to be a hardware/OS company forever and never expand their services? IDK