+ Minor point Per the emails, that exception was originally granted because Amazon wanted users to be able to purchase books (into their Kindle account) on Kin

+ Minor point Per the emails, that exception was originally granted because Amazon wanted users to be able to purchase books (into their Kindle account) on Kindles, but still be able to read them in Kindle-on-iOS. At the time, this apparently seemed reasonable to Apple. In the time between that and the email, Apple sold a ton of iPhones and iPads. Amazon did not sell an equal ton of Kindles. Consequently, Apple looked at the deal as "You're getting value, based on a device count parity that no longer exists. So when you spit in our eye in an advertisement, we're going to alter the terms of our deal."