iPhone OS 4.0: A Features Report Card (PC World)

PC World - Apple introduced the latest iteration of its iPhone operating system on Thursday, which will bring more than 100 new features for users. Apple didn't go into great detail about all the new features of iPhone OS 4.0, but the company did discuss some of the most prominent ones, including multitasking, new gaming features, an advertising platform, application folders, unified e-mail inbox, iBooks e-reading software, and some improvements to the iPhone's enterprise features.

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