No poser support or DSON. In the forums one member spoke of trying to make a Cr2. I suspect they will eventually make DSON files, but looking at the forums there is a lot of grumbling about the possible quick end of G2 support. 

To even attempt a DSON version would require Poser support industry standard dual quaternion skinning, which is how Genesis 3 is rigged. Note that is just one of the things blocking a DSON version, though it is the most obvious.