Check out http://scalien.com http://scalien.com or http://github.com/scalien/scaliendb http://github.com/scalien/scaliendb for a replicated, scalable (shard

Check out http://scalien.com http://scalien.com or http://github.com/scalien/scaliendb http://github.com/scalien/scaliendb for a replicated, scalable (sharding) database built around strong replication (Paxos). Google's latest database called Megastore is also using Paxos and they seem to be moving away from eventual consistency.