iPhone 9.2 beta 3 - highly stylized iOS device icon or iPhone 5 leak?

AppDated.de noticed that Apple was using an odd looking iPhone icon in iPhoto 9.2 beta 3. Was it meant to be a stylized, generic representation of an iOS device, or was it a slip up, revealing the form factor of iPhone 5?

Only Apple knows for sure, but since AppDated sent it to us this morning, you folks have kept sending it to us throughout the day, so as payback we're asking you -- is this iPhone 5 or is an icon sometimes just an icon?

[AppDated.de thank Moritz!]