For the completeness of this thread; some more details were provided in this Announcements thread:
iPhone 2 & Zimbra
We've got several 2.0 (5A331) iPhones that we've set Zimbra (5.0.6) up on using the Exchange server settings.
So far, its really wonky (as unsupported beta stuff is supposed to be) :
the mail app crashes often
only one calendar (default) shows up on iphone
events created on the iphone can't be deleted from ical or zimbra web cal
'push' is not consistent
Not complaining, just posting info for inquiring minds...
iPhone support (beta) will be in 5.0.7. We found some issues in 5.0.6 that are not compatible with iPhone client, and have fixed or workaround them in 5.0.7 which will be out soon. Just be patient, and let us know how it goes after you upgrade. Thanks!
Is the plan to have 5.0.7 out before the release of firmware 2.0 on the 27th of this month?
Since I a.) like wonky and b.) am a royal masochist I have just popped the 2.0 release on my 2G.
At first I didn't think that anything was happening, but after I went about my business the mail, calendar and contacts popped in... and was there when I returned to my desk. I am just monkeying about with it, but still running NE 5.0.4 until 01.com sanctions our update to 5.0.7. Deletions don't seem to happen immediately but it is more accurate than having to sync with iTunes several times a day--and yes--in this incarnation I am only seeing one calendar.
Other than that the potential seems pretty excellent.
Chris @ DPM
Version 6.0.16_GA_2998.NETWORK Apr 4, 2012 MACOSXx86
Xserve 2x Dual Core Xeons 10GB with Xserve RAID
JHill what ZCS version are you running?
If it is indeed 5.0.7 this is being investigated via: Bug 29884 - iPhone 3G activesync with conn for iSync causes many dupes in Contacts