One of the things that makes me nervous about ZCB is that it requires an admin user. We prefer to use one time passwords for people that can "make or break" things and clearly that wouldn't work with ZCB.
However now that we have a flexible admin priv model in 6.*, I wonder what privs does that ZCB admin user actually really need? My gut feeling is that all it really needs is adminLoginAs plus the various login, list, etc privs. My thinking is that I could create an admin user with enough privs to log in and the adminLoginAs privs to some distribution lists of BES users, plus a few more privs to make it all work.
Before I spend weeks trying to get it work, I wonder if Zimbra folks could give me a hint about what the admin user actually needs in terms of privs.