If you're accusing Apple of copying iOS 5's Maps app for iOS 6's Maps app, you're accusing Apple of copying itself. Google provided the backend data and map tiles for Maps prior to iOS 6, but Apple wrote the app itself.
Are you insinuating that apple designed the look for google maps on the iphone? google maps existed long before it was on the iphone, through google.com. The iPhone map looks just like the home browser version. The style looks the same on an android, blackberry and iPhone. Apple ripped off google maps plain an simple, but I agree with the original poster, there is nothing wrong with that, and it just shows how full of BS apple really is.