Address Book Dates is a new plugin for Address Book that adds information about a contact’s star sign and age to Address Book’s birthday field.

It also offers quick iCal link to other dates like anniversaries.

Clicking on a contact’s birthday label brings up a contextual menu containing the information.

Unfortunately, the iCal birthday link takes you to the actual day on which the contact was born (an unlikely date to schedule a candle-lit dinner), not to the next occurrence of that date.

Address Book Dates is freeware, a universal binary and is available from the developer’s web site .