I'd agree with most of what's been said about the details of the workflow.

FWIW, I think what P6 does is superb. One boost in the 'professional' direction would have been to lose the MetaUI look, and to introduce something more conventional. By this I mean standard toolbars top and left, palattes or panels on the right, and the viewport taking up the rest of the space.

With minor variations, this is the default layout shared by 3DS, Maya, Vue, and others - even DAZ|Studio (XSI is a slightly different animal, but not by much).

Right at the start of the P6 threads, one or two people regretted the opportunity lost in not doing this, and I think they were right.

You can still have eye-candy in your interface if you want, and you can still have it completely customisable - but the 'out of the box' look becomes more professional.

At the moment, Poser's UI reminds me of the old car bumper sticker - 'This program has hidden power, but I'm damned if I can find it!'