Which caldendar plugin is the best? Need your feedback!

[webservio]

Hello everyone,

I am in the process of evaluating the possible plugins for calendar. Security is the main concern and then the rest: usability. I was wondering if I could have some feedback.

Thanks,

[rosali]

Please check our bundle @ http://myroundcube.com. Demos: http://myroundcube.com/#demos

Our calendar is not fully featured yet (freebusy is missing, only basic invitations and no event file attachments).

There is another project you may want to check: http://www.kolab.org/