So the way it works today using an iPhone with the Amazon app to choose your content and then AirPlay it to the ATV is not bad. The display on the iPhone becomes x-ray for the programme you are watching and the TV goes up to a reasonable 1080 picture quality. However, there is no surround sound. Netflix has a native app of course on ATV4, but using this same technique as Amazon, using the Netflix app on the phone and then AirPlaying it to the ATV gives a better picture quality than the Amazon app AND surround sound. So if the Amazon app is a non-starter on the ATV4, at the least they could up the picture quality and support surround sound as clearly it is possible.