All together, now: "Finally!"
4. FaceTime over 3G
FaceTime can be incredibly handy for showing rather than just telling, but because it requires Wi-Fi at both ends, it has limited in-the-field applications.
But with iOS 6, Apple is enabling FaceTime over 3G connections, effectively opening the floodgates to what you'll be able to do with it: show a mockup of a new product, report back to the home office from the trade-show floor, and so on.
5. VIP Mail