I agree with Frell. I was super psyched to get this, but nothing has happened with it for so long, I've kinda given up on it. Considering how far along they made it look in those videos, I thought it wouldn't be too much longer before they'd release it.
Mara3D is out already, has updates, and is pretty damn good. It doesn't appear to be on the PC, but it's out, so that alone puts it ahead. So far anyway