[noloqy]

They might be selling it as a users' benefit, but in the case of the Amazon app, users are at a loss.

As long as the developers submit themselves to Apple's authority, Apple and its related products could offer superior service. Most developers are still accepting the "Apple way", even in cases where it hurts their own business proposition. The reason Apple has such a strong supplier power is that they have a very strong market share. However, Apple's arrogance will one day contribute to their downfall. Developers choose to develop first and foremost for the platform that offers the greatest benefits; as Apple's market shares are falling, the userbase is less of a reason to choose to develop for Apple first. Also, because alternatives are strengthening on various fronts, developers will be less likely to swallow Apple's authoritative terms if those terms hurt their own business model - even if that means offering a suboptimal service to Apple's customers.