This doesn't sound practical for Apple to enforce - they could cherry pick a few big targets perhaps (Adobe....). It could also simply be a change just so the

This doesn't sound practical for Apple to enforce - they could cherry pick a few big targets perhaps (Adobe....). It could also simply be a change just so they can see what the response from the development community is - and may change rather soon. I just can't fathom this particular rule lasting very long... it's not just lock-in, or a little bit evil, it's patently insane.