Apple really, really miscalculated (pun intended) with this Map App.
Here's why.
The fully integrated mapping feature on the iPhone (and all modern smart phones for that matter) is arguably THE killer feature of these devices.
Apple made the strategic blunder of assuming that making the iPhone more social (i.e. full twitter and facebook integration) was the way of the future and would be more important the mapping. But, they are dead wrong on that.
Maps are the most essential feature (aside from communication) that the iPhone has. They not only help you navigate your environment in the most technical sense of the word, but also give you loads of information ABOUT where you are, and where to find important things. And, the whole App ecosystem integrated this mapping feature, which has now been set back 2-3 years by transitioning to Apples proprietary mapping feature.
Now, I don't blame Apple for wanting to get out from under being forced to use Google Maps. BUT -- their execution of it was completely wrong. They should not have transitioned to it unless and until they were at least on par with the ios 5 version of Google maps. That means, you have to have Street View -- which is sorely missing here.
But, even without street view -- you still have to have ACCURATE MAPS THAT RENDER CORRECTLY! I think people could live wth (but grumble about) losing things like street view so long as the dang Apple maps were ACCURATE and up to date.
Obviously, they're not. And that's a serious problem. The GPS in my car is better than these maps are, frankly. Apple should have spent the money to integrate professional GPS navigation functionality instead of chesap Tom Tom junk.
Shame on you Apple. You have to do better with iOS 6.1 or you are going to have serious problems.