on topic, apple needs to remember, that no matter what, the developers are the one making money for them,
Pennies most of the time.
Apple takes 30% of the price, if there is a price. But anyone is welcome to sell their app for free. So Apple would get nothing.
The whole App Store thing is really more about pushing their hardware and the crap apps aren't really the things being pushed on that front. The good ones are. So for a fair bit of the public those apps can vanish and it won't matter. Because they still have their facebooks, their twitter apps, words with friends etc