I'm not sure I buy that all of those returns are piracy. His app could just be broken on the G1, for instance. Or people could misunderstand what the app is when they download it. I find it hard to believe that many people have rooted phones.
the numbers he mentions are all piracy. his app involves a server-side so he counts the users on the server-side and the actual paying users per platform.
Both the numbers seem high to me, but that could be a function of targeting the young, techy gamer crowd.