Use new custom labels in Address Book

In the 10.6 version of Address Book, there are new categories that you can choose when naming phones and emails. iPhone is an option for a phone number in the pop-up menu, and MobileMe is an option for an email.

This actually carries over to the iPhone, too. If you use the hands-free features of the new iPhone 3GS, you can now say, for instance, Call Steve Jobs iPhone. I haven’t seen this documented any where.