Okay, I've had a chance to play with it a little. I'm not sure if I'm going to keep it or not. It has a couple of handy features, but is it worth $25? I dunno.

It can't handle P5's nodes. At least, I couldn't find any way of adding nodes to the MAT poses. And when I tried creating them in the Material room and saving them using Material Manager, it just ignored them. You can see that in the image. I had a skin shader node applied to the face of Vicky 3, which is why her face is a slightly different shade from her body. There are also glossy speculars applied to her lips and eyes that were not included in the MAT pose when I applied it to preschool boy.

OTOH, it does create MAT poses that work fairly well on all Millennium figures. I made a MAT pose on Vicky 3 (on the left), and applied it to preschool boy (on the right), and it worked fairly well. Just eyes and eyebrows didn't work. And it sure is nice, being able to change the entire body of the figure to one color with the click of a mouse.

Actual operation is a little bit buggy, probably because of Poser 5's helpful "feature" of retaining material settings even after you change them.

Like I said, I'm trying to decide if this is worth $25 or not. Being able to color whole figures with the click of a button is nice, as is being able to create MAT poses that work on all Millennium figures. (You never know when you'll have to make an entire family of blue aliens or something. ;-) But I'm not exactly blown away here. For this kind of money, I kind of expected support for things like skin shaders and speculars.