iOS 7 is in many ways a new beginning for both Apple, its users, and its developers, but I think the OA is relying a bit too much on hyperbole. In the DP, there weren't really too many navigational changes, and the UI was still instantly familiar. Yes, there are new APIs and other neat fancy rendering stuff, and you can't discount the influence of the application's look and feel, but... it didn't feel very different, at least with regards to an experience perspective. It looks markedly better (apart from about 5-6 odd-looking icons on the home screen), and designing around that will perhaps be the most daunting challenge.

It will separate the best from the worst, however, and this beginning, this chance to start fresh, is what I look forward to.