>I, personally, would ditch iOS development for Android in a heartbeat if that happened.

This is kind of the problem though. You might, but most iOS developers would take the lumps and continue on as normal. iOS is too lucrative a market to ditch on philosophical grounds. After all, if Apple did adopt this policy, it's not even clear that it would be their worst offense regarding the iOS app ecosystem.

And that's the lesson Apple learned from iOS. They're just applying it now to their music store.