[miketwalker]

I think I found the catch in it. If you look through the link to the site, and look at the software screenshots... theres like a 150 pixel tall banner across the entire top of the thing with ads from Google. Even if it's free, 150 pixels is a heck of alot of space to take up for ads especially when you're trying to model. That'll be a pain to work with sketches and such in, and ads just get annoying in general anyhow.