Ok, I've Installed Poserpro this evening and played a little with it.  I think it's too soon to make a judgement about. There are so little visual changes and new add-ons that it just looks like I bought  Poser7. What I like so far is the possibilty of rendering in the background or in the render queue manager.  You can go on with  your work while a render is made, especially the render queue manager allows even to load another poserscene.  As far as I can see this manager handles all the network rendering, and it works seperate from poser, so you can quit poser while the manager continues It also allows you to make render batch jobs, so very usefull when you want to make a couple of renders during the night.
I can't say if the renders are quicker because I don't have a 64bit OS yet.
The new gamma correct setting makes sometimes better looking renders but not always , and  what I don't like is that it also "corrects" the displacementmaps, so you have to raise the displacement settings. I haven't tried the new normal maps, cause I first have to figure how to export them from Zbrush, there's a tutorial on the new Poserpro.net website how to do this.
I like this site: you have all the options on one page, but on the other hand you don't have to buy Poserpro to have access to it. (suddenly I wonder if the closing of the  poserpros website has something with this new site)

Bopper.

-How can you improve things when you don't make mistakes?