Note that a PR for GraphSON 2.0 has been submitted: https://github.com/apache/tinkerpop/pull/351
While I haven't reviewed in full myself yet, I think that this is a very nice set of changes. Given past discussions on this list in relation to this issue, I think we should all be happy with what was produced. GraphSON 2.0 should be interesting to driver devs (who i hope can review this PR a bit) because it will allow them to build their own type interpretation systems more easily. For example, the python driver could choose to convert a GraphSON Vertex into a Python Vertex object so that the users is working with actual Graph objects and not Map/List. Anyway, please have a look - hopefully we can get this merged in this week in time for 3.2.1.
