This is very impressive, though I wonder how much of their success may be due to the significantly smaller amount of competing games on Android vs iOS?
http://scobleizer.com/2011/03/04/developers-why-you-should-b...
One of his arguments is that the platform is slower and less efficient than iOS, so developers are going to want to target it to show off their programing skill or something. It's a ridiculous article full of wishful thinking.