For now. They can change that at any point like they did for publishers.

I wonder if they are going to do the same for the OS X app store if it gets popular enough.

Moreover, such arguments are silly. Nobody buys an iPad and then looks through the app store for $100k apps to run on it, or even $5k apps. If you are in the market for such an app, you buy the app and then go shopping for the hardware.

Perhaps Apple has now ceded the market for mobile clients of $100k enterprise Java applications to Android. If so, I doubt they are losing much sleep in Cupertino.

Obviously Apple's pricing model makes no sense for markets that they are not actually in. What matters, however, is the competitive landscape of the market that they are in.