This smells like an "official" leak to tease and get it out in the news.
There is really two losers in the Apple map rollout fiasco, Apple and Google. Both are stuck.. Apple corporate image get damaged, Google loss all the revenue they generate from the map app in IOS. And so far the Ios map issue does not seem to damage Iphone sales nor help selling any Android device.
A shift from IOS to Android devices is not something you can conclude on this early - the press (and buildup) surrounding the iPhone launches creates it's own momentum. It's the numbers for the next 2-3 quarters that will indicate if people are jumping ship in any noticeable rate. If a Google Maps for IOS launches soon it will also have an effect.
I know it's a longshot, but perhaps Apple, to save face, will allow another map app to be set as the default in iOS 6.1 or something.
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