Zimbra and Exchange coexistence.
In company where I work there are two offices. One uses Windows with Exchange, the other one is dealing with developement and uses Linux workstations and has no collaboration suite yet.
The "Windows" office wants better contact with us, so they want us to join their Exchange based infrastructure - which is not very good solution, as we do not have any real working solution to connect to Exchange for calendars, meetings and such (exchange connector for Evolution is rather crappy, and AFAIK does not work with newest Exchange).
Can Zimbra work with Exchange to share all the group calendars? So if somebody adds some meetings in their Outlook in the other office, we can use Zimbra to see those meetings in Zimbra webmail or in some CalDAV application?
Nice - Google Apps interop is next?
I'm hoping that the same type of solution can be used to interop free/busy with Google Apps. Here's some code that they published to access the information from a Google Apps domain:
Revision 122: /trunk/connectors/cs/src/core