Road warriors might appreciate the new mapping and navigation features of iOS 6. The current iOS has a Maps app already, but it doesn't provide voice-guided, turn-by-turn navigation. There are other apps available that do that--like Garmin StreetPilot--but there's no way to designate a third-party app as the default mapping or navigation app, and there's no way to integrate a third-party maps app with Siri.

On top of having cool 3D maps and a cool fly-by feature, the new Maps app will allow users to simply ask Siri to find the nearest gas station or coffee shop. Rather than pulling up navigation directions on a map that you have to actually look at and manually step through each direction, Siri will guide you there, turn-by-turn.

When Apple initially introduced iOS 6 and developers started working with the early beta release the mapping feature got mixed reviews. However, the demonstration Apple showed at the iPhone 5 unveiling seemed much more polished and impressive. We'll have to see how the new Apple maps compare in the real world when iOS 6 comes out next week.

4. FaceTime over cellular networks

FaceTime is great. Many traveling workers use it to keep in touch with spouses, or chat with the kids and tell them goodnight before they head off to bed while they're out of town. It can also be a simple and useful tool for impromptu video conference calls with other iOS or Mac OS X users.