[MatthewPhillips]

> That's true, but for a few idiosyncratic reasons, if anything.

> The Kindle app is available for the iPad, and for a period of time an iPad user could buy the book directly in the app.

Are you sure you meant to use the word idiosyncratic here? Because being available on as many platforms as possible is the default behavior for a business that sells content. It's Apple that is idiosyncratic here, by choosing to not make its stores available on any device not made by them. It helps their hardware business, where the money is made, but it's a bad choice for consumers.