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The iPhone is the first smartphone designed and marketed by Apple Inc. After years of rumors and speculation, it was officially announced on January 9 2007 and was later released in the United States on June 29 2007
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The iPhone 3G is a smartphone designed and marketed by Apple Inc.; it is the second generation of iPhone, successor to the original iPhone
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The iPhone 3GS is a smartphone that was designed and marketed by Apple Inc. It is the third generation iPhone, successor to the iPhone 3G
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