If you follow the NoSQL area, you’ve likely noticed the divergence in paths between Cassandra on one hand and CouchDB and MongoDB on the other. Data-store type aside, the main difference between the former and the latter two appears to be the existence of companies not only supporting the projects, but actually developing viable commercial versions. MongoDB and CouchDB keep wracking up high-profile users, whereas Cassandra news revolves around users scaling back their reliance. Furthermore, CouchOne’s new mobile platform evidences a real commitment to finding a killer app for CouchDB; Cassandra has no such direction. I know Riptano is on the job in terms of Cassandra support, but the sooner it releases a commercial version, the sooner we’ll once again see positive momentum for the web’s most-famous key-value store.