iOS 7 A few advance reviewers bashed the latest iPhones as rather stale in terms of hardware. However, iOS 7 includes whole lot of major changes for Apple devotees to process. First and foremost, the overall visual interface is quite different from older versions of iOS. It's considered the biggest overhaul for the operating system since 2007. In iOS 7, gone are the frilly graphical flourishes, such as faux leather for the calendar app and wood for the Newsstand app, replaced by a simpler, stripped-down appearance. There are new icons and fonts, transparency effects, and adva…