Despite a launch that was misdirecting drivers, moving Australian towns and otherwise making people quite unhappy, the Apple Maps app appears to be not only getting over its initial issues, but also gaining a tremendous amount of market share -- at the expense of Google Maps.
9to5Mac's Ben Lovejoy is reporting that the user base for Google Maps dropped significantly after the introduction of iOS 6 in September of 2012, which is of course when Apple replaced Go