I think Apple's ecosystem will inevitably fall to second place in 2 years time, when all developers wake up to the fact that Android will be by far the world's largest platform (and yes, it should be better paid, too, by then, as it already almost caught up with Apple in revenue/app).
[1]- http://techcrunch.com/2014/01/07/gartner-2-5b-pcs-tablets-an...