An OS needs an consistent user interface, not "make some new textures in photoshop and disregard our own design guidelines.". With iOS 6, Apple makes the UI of iOS even worse by changing the UI of certain system apps dramatically - iPod, Maps, Dialer, Stores, etc, and yet adds even more infringing apps to "doesn't fit with the rest of the OS" category - Passbook. I liked iOS because of the clean and consistent UI. That's one of the aspects iOS is better than Android at. But now with iOS 6, it seems like the designers are giving up and just wanting the novelty factor of "oh wow new look!" while making the UI confusing, inconsistent, and unprofessional.