Quite a while ago I mentioned here that it would be nice if someone wrote something to make a family tree based off of the Relationship fields in Address Book contact cards. Well, if you are an owner of OmniGraffle, you can take advantage of the Address Book Chart Builder extra (scroll down to find the link) that the Omni Group (those who make OmniGraffle) have up for free download. It does exactly what I said would be nice to have. Now there’s a real reason to include relationship information into your Address Book contact cards. Enjoy, Alex.
Update: The same listing that has the Family Tree scripts also has a TON of other cool and useful add-ons to OmniGraffle (most are either stencils or applescripts).