It looks like the free part is simply the render engine. They plan to add model import, posing, and other features later. I'm sure it will be good, but this information actually clarifies the situation a bit. Daz Studio will not be a P5 alternate any time soon. They have the render and model placement parts working (beta), but many, many, many features remain out there. Will be interesting to follow, but I'm glad I'm using P5 for now.