Yes, but its replication is similar to BDB's, a kind-of add-on/feature. It's not a full-blown replicated KV store like Google's Chubby with strong consistency, automatic failover, etc. Of course, not everybody needs that, I'm just saying...
Tokyo Tyrant is a network wrapper around Tokyo Cabinet, meaning it translates commands coming from the network to local db calls. In itself Tokyo Tyrant is not a a distributed KV store. Sure, it can be used to build one, but so can BDB, Mysql, or just about any other piece of software which takes data from the network and stores it on disk.
The part that actually coordinates all the different network wrappers to work in unison is what makes a software "distributed".
