The last time I asked CL about a native OS X version of Poser, the answer was deliberately vague -- I believe the translation was "when the overwhelming majority of our installed Mac user base is running OS X," which is probably the feeling in most Mac software companies. If the Classic sandbox is as good as everyone says it is, the incentive to lose the entire 9.x user base isn't great (but I'm sure they see the writing on the wall). The graphics goodies such as OpenGL don't seem to be much of an temptation to switch yet, either.