For sharing calendars between computers I make use of Leopard's iCal ability to access a CalDAV server (Darwin Calendar Server), this enables me to access and edit the same calendars with iCal from different machines.

These calendars are not showing up in the Synchronization preferences in OF though. Any chance of including this feature?

Synchronization seems to be a big issue judging by previous posts and it's the only real show-stopper I've found so far in experimenting with OF.