Apple's getting a lot (a lot!) of grief over dropping Google Maps and adding their own. I haven't personally had any issues, but you can see that some of the criticism is deserved. Amazing iOS 6 Maps: When you zoom out from Leyte, Philippines half of...:
When you zoom out from Leyte, Philippines half of the island disappears and splits into about 6 islands! If you zoom out more, the island reconstitutes once Mindanao and Luzon come into view!