pouët.net

I am completely expecting "Debris Redux" any day now.

http://raytracey.blogspot.de/2013/01/real-time-gpu-path-tracing-cubed-city.html

hehe, i'm personally hoping for a good 20 year anniversary edition of Desert Dream. But maybe not a good idea, hard to improve on such a classic demo.

That stuff seems extremely promising, but not yet quite fast enough.