9to5Mac.com has an article out claiming to have new knowledge of how iOS 7 should look and feel:
http://9to5mac.com/2013/05/24/jony-ives-new-look-for-ios-7-black-white-and-flat-all-over/
Notable is the idea of "White + <color>" themes in different apps, panoramic wallpapers, a possible toggle widget, new lock screen, etc.
http://9to5mac.com/2013/05/24/jony-ives-new-look-for-ios-7-black-white-and-flat-all-over/
Notable is the idea of "White + <color>" themes in different apps, panoramic wallpapers, a possible toggle widget, new lock screen, etc.