Based in how Genesis 3 is set up, Daz may not want it to work in Poser. Just as Zev said, most will probably just open up Studio to use it. Including myself.

That is one way to put it to use, and a totally legitimate one at that.  For me, I have no affinity or feeling whatsoever with DS. My attempts to make somethng with that program of my liking ended in disaster. My bad, I know, but that's how it is.

I do not see her as 'Genesis3 in Poser'. For me she is just a base figure provided at zero cost.

The figure performs well in Marvelous Designer so (for me) clothing is not an issue. She borrows cuttings from the MD Avtar's locker without conversion problems and has animated breasts so I can un-stress the fabric before exporting. I have my own designs and there is a large base of free items for MD so clothing of all styles at hand. Transferring hair is not a problem either. I have not yet found the way in DS to let her use Genesis or Genesis2 textures, so I'm a bit limited there. However, with DS interface t me being a big bag of mysteries I think I am overlooking something.

On the technical side as a figure she shows what can be achieved in Poser with a figure without JCM's or magnets using just simple bone weights. This is a huge step-up from the laborious and notoroously opaque DSON thing. Imported figure is pretty much Poser only and a perfect base for further development or an example for new ones. 

First work for me is to find out how to add thigh and butt helpers and further breast control.