OK; Its individual components, by themselves, are not what any hardcore Google afficianado would call replacements for Google's Calendar, Documents, Chat, and GMail. But Zimbra is a cohesive mashup of all these components into one, neat solution.
And I'm not the only one who thinks so either. Just look at the growing list of comapnies that have signed on to their program: Comcast Cable, H&R Block, Georgia Institute of Technology, Digg, O'Reilly Media and Mozilla. I find Mozilla particularly interesting.
I still love Google's products, and when you include Google Desktop & Gears, one gets closer to the integration Zimbra has. Closer, but not quite enough for some.
Come on Google! Kick butt!
