The iPhone 3GS provided several incremental upgrades over its predecessor, but without any significant evolution in overall design. The first three generations share the same external form of the original iPhone released three years ago. In that same period of time, the smartphone market has exploded with a flood of new designs. Although the iPhone 3GS represented the best device on Apple's platform, some of its specs have begun to seem dated against the competition. The latest iteration, the iPhone 4, finally brings a leap in design. The d
