Apple on Tuesday introduced two new versions of the iPhone 5, including a lower-cost 5C version that comes in five colors and is priced at $99 with a two-year contract. Apple's new 5S phone has several upgrades from the earlier iteration, including a faster processor and fingerprint scanning technology that adds a layer of authentication. The company also released the iOS 7 operating system to developers, with the intention of offering it as a free upgrade to some customers Sept. 18.

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