[AnthonyMouse]

It's not just testing on them. If any of your customers have bought an Apple mobile device, your only feasible way to distribute apps to them is through Apple.

It's like having Comcast and Time Warner and they each want to charge 30% of revenue to any service traversing their network. Not only is it unreasonable to say that they compete with each other because if you're not satisfied with Comcast you can just sign up with Time Warner -- because one of them is in California and the other is in New York and you'd have to move -- but it's not even you who would have to move. The customer of the App Store, the one who pays the fee, is the developer. It's your customers who would have to move -- every single one of them, or Apple still has a monopoly on each one who doesn't.

Notice how this differs from an ordinary retailer. Your customer can easily go across the street to Target or Walmart, or shop in both stores on the same day. They don't have to "move" -- buy a new device for hundreds of dollars and transition all of their other apps and services to an incompatible platform.