This is coming from a diehard apple fanboy- but in my opinion, iOS 6 is a total failure. It's main feature, "Maps" is a disaster. Its other main feature, "Passbook", isn't even really useable yet. And the rest of the updates are so minor you'd really have to dig deep to find what they were.
The responsibility for this failure is on Scott Forstall. He's heading iOS, and I bet he must be facing a lot of heat (or at least I hope). I love the iPhone 5- it's such a fantastic phone, but I truly feel it's been let down by this update. I wonder what's going on?! Did you guys see him during the iPhone 5 event? He almost looked bored and showed zero enthusiasm- all the while touting maps as the best maps ever, which clearly isn't the case. It's shameful.
In any case, things obviously need some shaking up on the iOS front, and it mostly falls down on Forstall's shoulders.