Age old question, yes, I know, but I seem to be struggling to find anything sufficient in my searching of the forums. Is there an application that will synchronize with an Exchange server such that a) the calendar is synchronized and b) subfolders can be synchronized (even subfolders within subfolders)?

Chattermail seems to be the app of choice for subfolders (IMAP, at least), but no calendar sync, and I'm hoping there's an app that does both itself. Plus we've already billed a good portion of time troubleshooting Activesync errors, so to go back to IMAP now would be somewhat of a defeat (and we'd prefer not having to use an external SMTP as well).

Any suggestions? Does Outlook/Activesync on Windows Mobile sync subfolders correctly? The user has an option to trade his phone in for a 700w.