At some point I would think there would HAVE to be a change, if only to incorporate more efficient and progressive ways of handling the rigging. We're working with methods that are over ten years old now, and there are probably much better ways to control figure movement than the method currently being used in Poser (this was brought up in another thread). Another nice thing would be to be able to support multiple resolutions of a model. In other words, if you had support in Poser for subdivided surfaces, you could use a lower-resolution model that LOOKED as good as a high resolution one. It would be a lot more efficient for animation and the calculations and simulations wouldn't take as long. As a developer, I have to keep four versions of Poser on my system for testing. I hope that when Poser 10 comes out in the future I don't have to keep all versions back to four! LOL I'd be spending a week just to make stuff compatible with older versions. 8-)