Apparently apple knew the maps situation well in advance but didn't address the problems.
The public backlash over iOS 6 Maps continues: developers are coming out of the woodwork claiming they warned Apple about quality issues before launch. A new report at CNET highlights stories from six third-party developers who say they tried to tell Apple about bugs in Maps, only to find themselves ignored. The statements echo the grumblings from other developers about Maps, in addition to what several Apple engineers told Ars last week as part of our feature on Apple's internal culture.
The developers speaking to CNET asked not to be named because they have apps in the App Store, some of which rely on Apple's MapKit framework for their own products. They tell stories of woe about filing bug reports in Apple's Radar system, making posts in the company's private developer forums, and even e-mailing Apple engineers directly about their concerns. One source claims an Apple employee told him the issue was "well understood."