Hi. I found this post on blendernation - http://www.blendernation.com/2011/06/24/machstudio-pro-2-free-gpu-realtime-animation-and-rendering-system/#utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Blendernation+(BlenderNation) . And I found it very interesting. Real time rendering. Possible it will be useful somehow for someone.
Official site: http://www.studiogpu.com/ - FREE!
looks pretty nifty