Amazon has finally answered the cries from both developers and its customers by finally launching the in-app purchasing system after what was seemingly an endless development. In a nutshell, it allows for developers to sell additional paid content from within an app. Since developers can just use Amazon’s distribution system instead of having to create their own, it just makes more sense and gives added convenience in order to gain additional revenue. Check out how the new feature works by taking a look at the video after the break.
source: Amazon App Store Dev