Both Thunderbird (w/ TbSync) and Evolution work fine for basic calendar stuff.<p>However, when comparing to Apple Calendar, they seem to lack two crucial features:<p>- calendar delegation (sharing with other users)<p>- meeting invitation; the events do show, but I can't way to change one's attendance status<p>It seems to me that at least one software capable of doing this <i>should</i> exist.
Am I missing something? Is CalDav just a broken protocol whose full implementation is doomed to remain just a sweet dream?