Billing a Challenge for Smartphone LBS Developers

Forbes offers up a nice roundup of the challenge LBS app developers are having with platform (iPhone,Android) based billing in contrast to how they now deliver other smartphone apps (billing via carriers). Some of the players (Networks In Motion for one) are wary ofGoogle,because of its competitive free offerings like Latitude. Also a hurdle:billing for individual users of geodata on the iPhone,since apps are linked to an account,not an individual phone.