Here is a detailed report on the state of mobile advertising.
http://operamediaworks.com/innovation-and-insights/state-of-mobile-advertising
iOS makes more money per user probably because the kind of users that buy Apple apperantly click more often on ads shown to them and the biggest chunk is the US in which Apple is disproportionately prominent compared to the rest of the world, in which iOS is little more than the other category.
But 75% is Phantasyland.
http://operamediaworks.com/innovation-and-insights/state-of-mobile-advertising
iOS makes more money per user probably because the kind of users that buy Apple apperantly click more often on ads shown to them and the biggest chunk is the US in which Apple is disproportionately prominent compared to the rest of the world, in which iOS is little more than the other category.
But 75% is Phantasyland.