Dan takes note of CalTalk, “a freeware iCal Bonjour calendar sharing program.”
Interesting. Now if I can solve my parents’ multiple-router DCHP battles and get a stable point-to-point connection, we could have a transcontinental LAN with calendar sharing. That would be kinda cool.
You should check out the Firefox Calendar plugin for that calendar sharing. I do it trans-Texas, and I bet it’s not limited to intrastate comms.