Great game! Played to level 5 on your site, heading to download it onto iPhone now, for more playage later. Without having looked yet, what is your revenue mo

Great game! Played to level 5 on your site, heading to download it onto iPhone now, for more playage later. Without having looked yet, what is your revenue model, if there is one? Is the plan to release this for free, build an audience, a name, get feedback and all that - to go bigger later with a new game?