To anyone else who finds it hard to understand what this is measuring, it is supposedly [EDITED] the money that app-developers make per-active-user on in-app pu

To anyone else who finds it hard to understand what this is measuring, it is supposedly [EDITED] the money that app-developers make per-active-user on in-app purchases (measuring some 'top applications' only). How it is determined is anybody's guess - even the original link [1] is quite opaque on the subject. I'm not sure I can make the same leaps from this to statements like 'the decision to fork Android was a profitable lesson' (for Amazon) as the original links. Please correct me if I have anything wrong here. [1] http://blog.flurry.com/bid/83604/For-Generating-App-Revenue-Amazon-Shows-Google-How-to-Play http://blog.flurry.com/bid/83604/For-Generating-App-Revenue-...