iCal, rebuilt for the iPhone using jQTouch
#ical
iCal, RSSCal etc
This guy has written all sorts of handy PHP code for dealing with iCal etc. Handles most calendar-based feed information, plus some neat tools.
Spanning Sync
“Synchronize Google Calendar and Apple iCal. Share calendars between multiple Macs. Share calendars with your coworkers, family, and friends. And while you’re at it, connect Google Calendar to your iPhone, iPod, and other devices.”
Growl Notifications for iCal (How-To)
Growl Notifications for iCal (How-To)
Cool hack to make iCal send notification via Growl rather than the nasty internal panel thing/sound/email/whatever.
Event Calendar for WordPress
Awesome, really flexible calendar plugin/framework for WordPress