SmartBook brings smart groups to the Apple Address Book. Smart Groups are to the Address Book what Smart Playlists are to iTunes. They allow you to have groups that update automatically according to a set of rules you can setup with it:
SmartBook brings smart groups to the Apple Address Book. Smart Groups are to the Address Book what Smart Playlists are to iTunes. They allow you to have groups that update automatically according to a set of rules you can setup with it: