I saw the announcement on Facebook and was disappointed that I was not the first to post here about it; then I realized who made the post.
This makes me super excited, as I could never get a decent build going on OS X until now. I used to use Maratis3D, but it is a mostly dead project now (although it's still solid). I have high hopes for Polycode. :D
Don't ask why, but I just stumbled across two pretty obscure cross platform engines, both with an editor, both quite full featured, that both seem to have their next version in the works, perhaps they could need some love...
Maratis 3D (http://www.maratis3d.org/)
Gameplay 3D (http://www.gameplay3d.io/)