This highlights an interesting loophole in the libertarian "magic markets" theory: a truly free market includes the right to create closed, authoritarian ecosystems, such as the App Store, or the downloadable game markets on all three major consoles.
Sometimes the model turns out to be inefficient and unsustainable, and such companies are crushed by more open competitors, but not always.
Sometimes the model turns out to be inefficient and unsustainable, and such companies are crushed by more open competitors, but not always.