"I don't doubt it won't be long before there will be content in the DAZ Store exclusive to DAZ Studio and usable only in DAZ Studio." This would be a huge mistake. The Poser marketplace is a small, happy buble that exists mostly as an accident of history... it coudl collapse in fairly short order once this small niche is split by more fragmentation than it already has (Daz not supporting P5 in some ways for example). This market is small in real terms, split it and it might find itself collapsing in important ways.