AddressBookSync is a free Mac OS X application to download profile pictures and other Facebook data to Address Book cards. This is a handy tool to keep your contacts pictures updated if you have numerous Facebook friends in your Mac OS X Address Book. If your phone supports synchronization with Address Book your contacts profile pictures show up when they call you. AddressBookSync will also attempt to synchronize birthday (nice for iCal b-day calendar) and current location information to Address Book. AddressBookSync supports the automatic matching of many common short/alternate first names between Facebook and Address Book (i.e. Michael and Mike, William and Bill, Jessica and Jess). AddressBookSync also supports the manual matching of any Facebook/Address Book pair, as well as the ability to add a new contact to Address Book from Facebook data.