We havent updated for quite a while - time to give some inputs over the Browser Games Market:
Link: 
and there is also a great article about Sales in the AppStore of the game "Flight Control": http://www.techcrunch.com/2009/04/29/flight-control-sales-stats-offer-fascinating-look-at-inner-workings-of-the-app-store/
FlightControl-SalesNumbers