As of 2:00 PM local time (here in Halifax) it’s possible to update your iOS device to 6.0. I had mine ready to go and the download finished and upgraded in about ten minutes. iOS 6 brings lots of great new features, including iOS 3D maps and Passbook.
Apple’s full summary of new features can be found here. To download it go to your device Setting>General> Software Update or use iTunes.
In summary, here are my top features: