Google should start worrying now since apple has replaced its Google Maps with their own map technology in todays WWDC event. This was much expected and it seems Apple has perfected in many areas of mobile mapping apps if you go through the pics that is pop-ing in internet for Apple Maps.
They are very much similar to Google Maps, its a vector based map which shows you 3D street view similar to the street view launched by google last week. Or you can say its better – source engadget
Over all a very good review about the apple maps, will catch you with the details as soon as we find more