Software Developed by John Maisey
ICal Dupe Deleter v.1.1
iCal Dupe Deleter is a straight-forward application to aid the removal of duplicate events and todos in iCal under OS X Leopard.
Dates to iCal v.2.0.2
Dates to iCal automatically syncs your Address Book birthdays, anniversaries and custom dates to iCal, creating alarmed, editable events in a separate calendar.