Apologies if this has been posted before, (which, given Google's popularity, it probably has) but I couldn't find it.
Let me first start by saying that I think the work to include the various elements of google apps into Zimbra Desktop is an excellent idea, and there has clearly been some good work done on it. I do, however, have a couple of minor niggles that I know a lot of our users will in turn pester us about when we roll it out for the company. This is for ZD 7.0 beta:
1) Calendar only syncs the main google calendar. Not other calendars I have created nor default calendars provided by google, like holidays etc. I have not tested calendars shared with me by others, but I've got no reason to think they would work either. In fact after the initial setup and first launch of ZD, it doesn't show any calendar from google at all. I have to completely shut it down and restart it to get even the main one.
2) Contacts don't reflect groups. I would prefer to at least have the option to make contact groups into separate contact books.