Apple are taking their 30% cut, right? I'm not sure how Amazon's terms interact with in-app purchases, but presumably they've thought of this.

If the NYT sells an app with bundled one-year subscription, Apple gets 30%; if the NYT sells (well, sold) an app and a separate one-year subscription, Apple gets nothing. If the original app is sufficiently useless, this "in-app purchase" is clearly just a way of not paying Apple.

(Apple is not free of blame in that particular fiasco, and they take quite a large cut. But taking an equal cut in either case is not necessarily unreasonable.)