Let's face it the address book that comes with the iPhone is wonderful, but it lacks a few features. Wouldn't it be nice to add a group using Address Book Plus to help you find names and address and phones numbers faster?
Example: You could make a group that has a listing of all of your friends. You could make a group that lists all of your clients or work contacts. The options are endless, but it certainly makes finding names that much quicker and easier.