What the book covers: business models on the iPhone, including free apps for marketing, trial apps to entice users, advertising-sustained apps, and paid apps. The book discusses the pricing models prevalent on each type of application (games, fitness, utilities, and so on). The book provides a blueprint for the effect of competition, designing a business plan for the app store, assessing iPhone 3.0 business potential, and marketing your app. Series features: iPhone 3.0 Business Strategies For Dummies is written in the friendly, humorous, and easy-to-understand style that is the hallmark of the For Dummies brand.