I'd never heard of Messiah Studio before, but heck, I've dabbled in 3D enough to cough up $40 for professional software. Fingers crossed it hits the goal.
For a hobbyist, this might be a good value, but if you're looking at it for semi-pro use, it might be a better investment of time to build portable skills in a more widely adopted platform.
edit: comparison here: http://www.thepixelart.com/10-best-real-time-animation-tools...
I like the idea; i'll leave them figure out if it makes business sense. One thing certain: if their retail price had been $100 on special to $40, I would not even have clicked.
Said search turns up quite a few rapidshare/torrenting links, but with a price point of only $40, I don't see why anyone would go that route.