At the recent jQueryTO conference Ross McKegney formally announced Verold studio (just ahead of GDC). The Verold platform provides web developers an entire workflow to collaborate in the production and forking of 3D content for the web.
Verold sees the web using technologies like three.js and WebGL as being the future of 3D gaming and breaking out of the bonds of the applification of 3D.
Check them out at Verold
Verold Studio from Verold on Vimeo.