We are excited around here as well! We made the mistake of installing a test server with the latest release candidate last week and now I keep using our current system and wishing the new features were available
Also it seems like I keep getting asked by our clients if a feature or options is available, and I keep having to tell them that its in the next version after looking up the bug report and seeing it "Fixed" but then seeing Zimbra 6 :P
I'd also like to take the time right now to thank all the developers and testers who helped bring this version out. I appreciate the fact that they didn't go and completely redesign the interface, but yet added features that compliment the original design and fix the little quirks. I'm glad I wont have to listen to the complaints that I remember hearing when we had clients move from office 2003 to office 2007.
Thanks!
Shane Menshik
D2 GLOBAL INC
p.s. Personally the top two features I'm looking forward to would probably be the fisheye view in the web interface and automatic spell checking before sending messages ( I don't have time to pay attention to my spelling, I'm too busy typing
)