The most startling aspect of this writeup is the iOS / Android revenue difference. I'd have expected Android revenues to be lower, but not by about 1/3.
I'm going to update the Power 20 site to give equal airtime to iOS and Android.
Android sales have actually recently outpaced iOS sales because I'm able to iterate on the app's name more frequently in Android. I can find out which titles work faster on Android. With iOS, one must submit a new app every time they change the name. Crazy.