A mockup of a case for the iPhone 5 suggests that the device will have a rounded back and a larger, buttonless screen. It was rumored that Jobs would be ditching the Home button in favor of touch-sensitive gestures, but it’s unknown if Apple will decide to make the switch. Case manufacturers frequently produce designs on speculation to be one step ahead of the competition, and with the release of the next-gen iPhone growing closer, more mockups are likely to flood the net. The iPhone 4′s unique design was favored by many for aesthetic reasons, but the integrated antenna proved to be problematic. It’s possible that Apple has gone back to the drawing board with the upcoming device.