It should:
- remind me of my appointments
- tell me when I receive an email, from who, and maybe scroll the title of the mail
- maybe for zimbra5, tell me when buddies log in/ log out for instant messenging
All this would be nice

But I think I would even prefer a very small notifier which would hide in the taskbar and whose only role would be notifications... Notifications are really important to me as I don't always have my zimbra tab open, or maybe sometimes it is hidden cause I have too many...
So, yeah, a taskbar notifier for me would do it
