9to5Mac reports that it has "been given a quick peek" at an early beta version of iOS 7, and while the report's source would not allow screenshots to be posted, 9to5Mac is able to share a description of the new design and has created a mockup (at right) highlighting some of the main features. Among the details: - Skinny font as seen on the iOS 7 banner at WWDC. - Carrier signal in status bar changed to five white/gray dots instead of bars. - Flatter icons, in many cases also redesigned. - Separate black and white themes f