Sync Zimbra and iPhone with Funambol
From wiki.breedveld.net
Sync iPhone contacts with Zimbra using Funambol
Install funambol on Ubuntu x64 Ubuntu server:
dowload the latest version here
run as root:
./funambol-8.7.0-x64.bin
Install the admin software on your client, or run it direct on the server, if you have X:
/opt/Funambol/admin/bin/funamboladmin
see for more info:
http://wiki.zimbra.com/wiki/Open_Source_Mobile_Calendar_and_Contact_Synchronization
on iPhone
install Funambol application from the apps-store
Point iPhone to:
http://<server>:8080/funambol/ds/