Things are becoming clearer to me: Grails/GORM is the Springframework avant-garde experimenting and integrating various NoSQL databases. Early February there were Grails plugins for CouchDB, HBase, Neo4j, and AppEngine, then it was time for Redis support in Grails, followed shortly by MongoDB support in Grails/GORM.
Over the weekend J.Brisbin added support for Riak MapReduce in Grails/GORM. Project on ☞ GitHub.
Spring Data is the emperor’s army “standardizing” the results.