iCalendar support?

Hi all! I know this is not the first (and will definitely not be the last) time this question is asked here, but since I was unable to Google anything out on the topic, does anyone know of any kind of iCalendar support for PHP? I'd much prefer a class to a module because I'm working on a project that's being distributed under GPL (and most people won't recompile/upgrade just to get this part of the project working), but any kind of pointers are welcome. In case nobody knows about any cool iCalendar implementation, I'll start to think very seriously about working on an iCalendar library (as a PHP class) mainly for the project I'm working on, but obviously also released as LGPL. So if anyone's interested in that, drop me an e-mail. TIA Bogdan -- Mail scanat cu RAV Antivirus!