...WOW.
I downloaded iOS6 on my Ipad 2.. I typed in my home address (a home built over 2 and 1/2 years ago) and iOS maps couldn't find it...
On my iPhone, I use my maps application several times a day. I occasionally use street view to scope out places I've never been to (such as to check the parking situation, or just to see how the store/building/store looks so I find it quicker). I'm sorry, the very limited flyover feature is useless and gimmicky. In general maps have seemingly no detail compared to google's. I cant find half the restaurants that exist in my neighborhood.
Needless to say, I will not update to ios6 until google can offer me a real map application on my iphone. If that doesnt happen in the next 6 months when I'm set to replace my iphone, I will not be replacing it with an iphone 5. This is a deal breaker for me.