Apple has unveiled iOS 7, its completely redesigned mobile operating system for iPhone, iPad and iPod touch. The update will bring a new look to the iPhone's interface, as well as some new features. Here, we examine what iOS 7 tells us about Apple's next iPhone, dubbed iPhone 5S or iPhone 6.Related StoriesBest protector cases for iPhone 5Security Manager's Journal: Android panicLow-cost iPhone Lite rel
