And is why Apple chose 30% when they launched the app store; it was already an acceptable charge, and could be justified with storage/bandwidth costs and the suite of tools/services built for it.

That doesn't seem to line up in my books, but we'll see how the next few years go while the 30% commission standard still has a target on its back.

For a console game you'd have to pay a 10-20% title fee and then the retailer also takes 30-40%.