Hi,
I thought I'd pass this around (caution: in French):
http://strasslab.net/blog/index.php?2006/10/17/182-gestion-des-calendriers-etat-des-lieux-a-fin-2006&cos=1
Clearly, there are people out there waiting for us to ship something and
have at last an open calendaring/collaboration solution that works...
Cheers,
- Philippe