Here's a link to Jules Urbach's presentation about OTOY at GTC 2010: http://www.nvidia.com/content/GTC-2010/pdfs/4008A_GTC2010.pdf
Some interesting stuff in there:
- "Games/Apps –100% in the cloud by 2014" !!! this doesn't sound too far-fetched considering the success of OnLive and the growing interest from major game publishers and developers in the cloud platform.
- "High level web services enable path-tracing and LightStage rendering in any 3D engine"
- "Crytek engine on Facebook"
Real-time path tracing and GPU cloud servers, it's a match made in heaven (or in the cloud actually) .
UPDATE: Found a link to the full video presentation from Jules Urbach at GTC in HD + there's also a Q&A session afterwards: http://www.nvidia.com/content/GTC-2010/flvs/4008_GTC2010..wmv
Notice Jules talking about unbiased rendering at 04:26 and path tracing at around 08:20!