DAViCal and support for Apple's CalDAV client in OS 10.5
Quite a few people seem impressed with the new release of Leopard, and are now looking for a CalDAV server to use with their shiny new iCal app. Unfortunately it seems that Apple wrote this primarily to work with their own (free, open-source) calendar server, which has the side effect that it doesn't work with DAViCal.
Part of the "doesn't work" is due to DAViCal not implementing some areas of the CalDAV specification, which is fair enough. Part of it is due to DAViCal not implementing some draft extensions to the CalDAV specification, which I can also understand, since it allows them to provide some useful features that those extensions are designed to support. There also seem to be some parts of the "doesn't work" which are due to a dependence on extensions beyond either of these cases, which is a little more disappointing - and quite a bit harder to implement.
So far I have made some fixes to the first point, and some additions towards parts of the second, but as of today it still does not work. This is complicated by my not having access to a Mac. Things are looking up, however, because Tom Robinson has kindly agreed to loan me a Mac running Leopard from next week.
In order to "clear the slate" for that, I will be releasing a 0.9.2 over the weekend with the various minor enhancements and fixes that have been applied over the last week. So although this upcoming release will let you add your DAViCal account to iCal 3, it still won't actually work with it. I'm hoping that ready access to the application will enable me to correct that fairly quickly.
Also waiting in the wings (and which unfortunately won't be in 0.9.2 either) Maxime Delorme has been working on SyncML support, and is nearly ready with a patch, so we can look forward to that addition fairly soon also.