Rumor: iOS 7 to see significant overhaul, development running behind schedule
According to the well-connected John Gruber, iOS users will see a difference in the operating system's UI when iOS 7 is released presumably alongside the next-generation iPhone, but Apple is struggling to implement the changes on time.
http://feeds.appleinsider.com/click.phdo?i=b44676e646bc4221f9a34396fb682da3
