Are there any CMS based on document-based database?

Question

I did some googling, not much come up.

Answer 1

Drupal 7 has support for MongoDB coming (alpha release).

Answer 2

I found Avinu linked from Mongo's production deployment page. I didn't see any other CMSs there, though. Edit: And they don't actually have any source available right now.

Answer 3

LocomotiveCMS is an open source CMS written in Ruby which uses MongoDB as its data store.