People in the ADP learned in June of Apple maps just like everyone else. 4 months is not enough time to provide a full map application, unless you're going to implement it using Map Kit... which doesn't solve the back-end problem, which is the core issue here.
Map kit has been migrated to Apple Maps in iOS 6.
Unfortunately, if you look at Apple's acquisitions from just a few years ago I think people in "the know" have seen it coming. When I first saw the C9 demo (or whatever the company was called) on an iPad I thought, why would I want to use that? I don't own or could fly a helicopter.
I'd still prefer street view.