'Freemium' iPhone Apps Growing as Successful Business Model
GigaOM takes a look at so-called "freemium" iPhone apps: applications that are free to download and offer basic functionality but generate revenue through the use of In App Purchase content. According to the report, freemium apps are becomin...
http://www.macrumors.com/2010/11/11/freemium-iphone-apps-growing-as-successful-business-model/