Interesting. But seems a bit pricey for what it does. Can't most top-level render apps produce HDRI or EXR images to use as GI light sources? For example, I can output both HDR and EXR images from Brazil for Rhino in all common HDRI lens shapes (panaromic, spherical, etc) using any scene geometry/lights when i render. And of course a fully-developed render engine can do so much more than just make studio lighting, such as using gels, mask patterns, etc.... Other rendering apps (Lighwave, C4D, Mental Ray) can't do this too? Sorry i just don't know much about the abilities of those render apps...

jonah