What are this week's top-grossing iPhone apps?

With more than 75,000 applications in Apple's App Store, it's hard to keep track of what's new, what's hot and what the trends are in the top applications. FierceMobileContent has produced a list of the top-grossing applications from the App Store for this week. They cut across different app segments, from utilities to games to social networking. What's the hottest app right now? Slideshow

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