Couchbase 2.0 is Membase Server (http://www.couchbase.com/products-and-services/membase-server http://www.couchbase.com/products-and-services/membase-serve...)

Couchbase 2.0 is Membase Server (http://www.couchbase.com/products-and-services/membase-server http://www.couchbase.com/products-and-services/membase-serve...) merged with CouchDB, and as I understand it, Couchbase 2.0 more closely resembles Membase Server at the moment (http://www.couchbase.org/get/couchbase/2.0.0 http://www.couchbase.org/get/couchbase/2.0.0).