Over at Hivewire, they were talking about displacement in Superfly. Supposedly, it's being added to Blender, so maybe it's coming to Poser eventually, too?

I think a big part of the problem with Superfly is it's still a work in progress. Sometimes updates break materials that used to work. I think that discourages some people from wanting to learn it.

Though I guess that happened with Firefly, too. Seems like it wasn't very often, though. It was more stable over all.