Agreed. I never intended this thread to turn political; I was merely seeking interest and info regarding an alternate sync implementation.

As it turns out, sync does work for me. It was a user error (they changed the exchange server hostname at the same time I got my n900, by pure coincidence). So I'll probably focus my effort elsewhere for now.

I would still be interested in an OSS exchange sync plugin for Maemo, especially if the official agent does implement real provisioning support (allowing remote wipe and enforced device locking), as I don't want others to have that level of control over my device.