Hi Guys - this looks to be a great product, but from my point of view it is unusable while in a fat format...
My servers run a number of standard services - apache2, tomcat, ldap, mysql, postgres, postfix, fetchmail, cyrus etc. The install of zimbra upsets this balance - if it could be installed into an existing setup I could see the uptake of this fantastic set of apps being far higher.
OpenXchange seem to ahve the right way of going about it by having an installation procedure that allows for configuration into an existing setup - their's is a java based application too, so one wonders why the fat path is insisted upon.
Another consideration is that most people wishing to install your applications have enough knowledge to be able to use configurable options snesibly, and thsoe that don't have enough common sense to be able to follow instructions - again see the OpenXchange documentation (http://mirror.open-xchange.org/ox/EN/community/ )
I'll be keeping an eye open for future developments as I would very much like to be able to use zimbra.
All the best