"I don't blame this on Android phones or users, however."

I am forced to call you out on this misinformation. It is the Android _phones_ and _users_. Android based platforms like the Nook Color and Amazon Fire both have good app revenue in my experience. Android phone revenue is at the bottom for the apps I sell. Of course, iOS is at the top.

I'm willing to listen to any counter-points you may have to back up your claim that it's not the Android ecosystem. Fire away.