Questions regarding current Mecanim features

I’m planning on upgrading my Unity 4 license soon too get in to the 5 beta, and I wanted to ask current users if any of the Mecanim features listed on this blog post are integrated yet?

On a side note still related to Mecanim, I was wondering if their new root motion system for generic rigs can be used on animation clips imported from an FBX?

It’s too far from my current comfort zone to explore the detail, but yes, most (or maybe all) of the stuff they talked about is in the beta already.

For example one of the learning videos they put out the other week features the sub-state machine hierarchies: