While testing WebDav and iCal setup, it seems iCal does not know what https is. iCal works fine with http. From macosxhints someone mentioned that iCal does not support ssl, it sucks.
Mozilla sunbird support standard .ics files and runs on Mac/Windows/Linux, so you could share your calendar cross platform on Mac OS X and Windows, Linux.
Mozilla sunbird support standard .ics files and runs on Mac/Windows/Linux, so you could share your calendar cross platform on Mac OS X and Windows, Linux.