Every iPhone incarnation is naturally better than the one that precedes it, but the iPhone 5 represents the first time that Apple has increased the screen size. Going from 3.5 inches to four is a bigger jump than it seems. Then you get to the speedy A6 chip, improved camera, and the robust battery life -- 8 hours of talk time and data browsing or 10 hours of WiFi browsing -- and you begin to see that Apple's iPhone 5 wants to replace all of your gadgetry. Why do you need a video game console, a digital camera, or even a laptop when the mother of all tech Swiss army knives is now in your hand?