There is precedent; the rate was actually much higher in previous mobile app stores (e.g. Symbian and ring tone stores). Additionally, there is related precede

There is precedent; the rate was actually much higher in previous mobile app stores (e.g. Symbian and ring tone stores). Additionally, there is related precedent in areas like publishing (ebook stores usually charge 30% or more commission). I don't think 30% is outlandish, though I do think it would be nice if Apple reduced that cut, especially if they wanted to consider some form of graduated rate.