Interesting news. If I understood it correctly:

Datastax bought the company behind graph database Titan (last version is 0.5.4).

They announced that they will finish Titan 1.0 and donate it to the Apache Foundation.

Then they will work on newly rewritten implementation of graph database, integrated with their products.

And that will be opensource too.

Not sure about licensing for comercial purposes.

http://www.zdnet.com/article/datastax-snaps-up-aurelius-and-its-titan-team-to-build-new-graph-database/