Google has an iOS 6 Maps app awaiting approval
This map uproar seems a tad hyperbolic.I used it this morning and I was actually pleasantly surprised.  My map experience wasn't worse as I expected, but actually much better with turn by turn.The people most upset seem to generally be edge cases.  I'm sure Apple will work those out as complaints roll in.Google has had 7 years to perfect maps.  Apple feels maybe a year behind in some respects and a year ahead in others, but definitely not 7 years behind.