It turns out that Mozilla's Calendar plugin is developed, and now it has become an independent Project to be installed for Firefox, Thunderbird (unsuccessful) plug-in, can also install Multi-Calendars Support can be released to the calendar server, but the basics of the service are not available, HTTP : //www.icalx.com is provided, I don't know how to release, and often can't even have a good ICAL in Mac OS, but unfortunately, not apple can't be used, see Well, DAY ViewWeek ViewMonth View