Thunderbird still
cannot [mozilla.org] save or read Contacts on a CardDAV server (also, Thunderbird is in indefinite feature
freeze [ghacks.net]...). Neither can RoundCube nor SquirrelMail. It seems that --still-- there isn't any complete
opensource alternative [postimg.org] to be stacked against the Microsoft solution which could be explained as "Outlook(desktop)/OWA(web)/ActiveSync(mobile) working against a unified server-based data store".
PostPath [cisco.com] failed.
Hula [wikipedia.org] failed.
Zimbra [wikipedia.org] is not opensource, and
Zentyal [wikipedia.org] is foolishly playing the never ending game of being Outlook-compatible, which they only manage to partially achieve (look at their forums). Has Google Apps absorbed all the momentum for non-Microsoft groupware alternatives?
Original Submission
