Using Lion 10.7.4 - I have added a field for Anniverary in Address book. From what I have read, you cannot sync this field to iCal, iPad or iPhone but must use a 3rd party software to accomplish this. However, anniversaries ARE syncing to iCal on my iMac. They are not syncing to my iPad or iPhone. I cannot find any setting in iCal that is allowing this exception, but it would be nice to know what I did so that I can replicate on my iPad and iPhone. Anyone have success in syncing all three calendars? Why is my iCal calendar the only one that works? In case it makes a difference, my calendar is a Google calendar and anniversaries are visible on the online version of my calendar at google.com.