Hi Paul,

> Any plans for 3D pdf export/save for v.3 ?

No, not currently - unfortunately 3D PDF is not particularly easy to work with from a programming point of view, you have to use various libraries and there as been quite a bit of flux in some of the library situation as well with Adobe kind of backing out of it and handing it off to some other company or something like that.

Enough confusion about it that I'm not particularly enthusiastic about jumping into trying to make sense of that at least for a while yet.

I'd recommend looking at SimLab composer for generating 3D PDF files:
http://www.simlab-soft.com/3d-products/simlab-composer-main.aspx

- Michael