Neo4j 1.4 M04 introduces Cypher, a graph query language

Marko (the creator of Gremlin) explains the difference here (https://groups.google.com/forum/#!topic/gremlin-users/j9gb4c...)

No. This is a completely from scratch implementation of a semantically sound and complete query language that is built right on top of the Neo4j kernel. It is implemented in Scala, for what is worth it.