[imp] Syncing contacts and calendar with Exchange?

[Michael Wing]

I realize this question might be better addressed on Kronolith and Turba
mailing lists, but since they're integrated so tightly with Imp, I figured
some of you may have addressed this in the past.

I would like to have my Imp-accessible contacts and calendar automatically
sync'ed with an external Exchange server.  Are there any plugins or hacks
available for doing this?

Thank you,

Michael