Why is the next generation iPhone widely called the iPhone 5 when it's the 6th generation. The iPhone 4S was the "iPhone 5", I think people are using "iPhone 5" because the iPhone 4S wasn't a complete design overhaul.
iPhone (1), iPhone 3G (2), iPhone 3GS (3), iPhone 4 (4) iPhone 4S (5) next gen (6)
iPhone (1), iPhone 3G (2), iPhone 3GS (3), iPhone 4 (4) iPhone 4S (5) next gen (6)