Apple has modified its subscription policy to remove the pricing requirement that forced content providers to sell in-app subscriptions at the same price it sells them outside the app. These older terms and conditions were supposed to go into effect on June 30, and caused a stir when they were first introduced and used to reject apps like Sony Reader from the App Store.
The older subscription terms stated:
11.13 Apps can read or play approved content (magazines, newspapers, books, audio, music, video)