John Maisey (it’s John Maisey Day here at Hawk Wings) has also spruced up his applescript for deleting duplicates in iCal.
I’ve just moved to all my calendars to Zimbra’s CalDAV service, and even with every imaginable backup and every care, I ended up with duplicates all over the place.
iCal Dupe Deleter came to the rescue. It is now packaged inside a slick interface that offers more options and control over the deletion process:

It lists the available calendars and offers you the option to test it for duplicates before doing anything drastic.
iCal Dupe Deleter is Leopard-only, although John continues to provide earlier versions of the applescript that work on Tiger along with the new Leopard version on his web site
. It is donation-ware.
There are lots of other good scripts there too.
Tags: applescript, appointments, caldav, Calendars, dupes, duplicates, iCal, Productivity
John Maisey has updated his AppleScript for deleting duplicates in iCal, so that it works with Leopard.

ConceptDraw Lab
Entering text then creates to-dos attached to the selected calendar.
Scalp is a bundle for iCal that enables the sharing of calendars over FTP, SSH or SFTP connections.
There is now less than one day to go until the World Cup kicks off, so it’s time to mention a slick way of following “the World Game” with iCal to make sure you never miss a match.
CalTalk is a helpful app that enables the sharing of iCal calendars over a local network using the Bonjour protocol built into Mac OS X 10.
I guess that everyone on the planet now knows that Google 

