Chris Anderson gave a talk on couchdb last night. CouchDB is a document database with an integrated web server and RESTful access to documents. CouchDB is optimized for many readers. It is ACID compliant and uses multi-version concurrency control so readers are never interrupted or blocked. A couchdb server can duplicate a database with another server, do any number of edits, and re-sync with the original server.
I think there is a lot of potential is this approach and applicability with IceCondor.
this post was in the queue for a week.. kicking it out instead of deleting it...