Yahoo! Zimbra Desktop version 1

I had been testing the beta version of this product, and at this moment their website has the word "beta" on it...but it appears that "version 1" has been released: my installed software has updated to "version 1".

Amongst its many features:

Contacts-
import contacts as .csv files, or export contacts as .csv files
Syncs Zimbra, Yahoo! and Gmail contacts

Calendar-Syncs Zimbra, Yahoo! and Gmail calendars

Windows, Mac OS and Linux

mailbox data is kept on the server

Yahoo! Mail, Address Book, and Calendar Support
Gmail Mail, Address Book, and Calendar Support

It's being promoted as a replacement for Microsoft Outlook.

Per their blog, it's possible I have "Release candidate 1"; in the "About" window it states it is "Yahoo! Zimbra Desktop 1.0".

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My experiences, so far...

In Zimbra, I added a contact to my Gmail account...that did not sync with my Google Contacts account.

Because I'm using the free version of Yahoo! Calendar, I cannot sync Zimbra with my online Yahoo! Calendar.