There is for link ===> Renderman 19
But for free non-commercial will be out in early 2015 so no long to wait 
Thank you, really time to start trying the beast.
The Pixar website has a sign that Lukas is right on the money when it comes to adaptive sampling.
http://rendermansite.pixar.com/view/f-adaptive-sampling
20 to 50 percent decrease in render time with that engine, about the exact same performance increase you get with the adaptive sampling patch.
It also looks like bidirectional patch tracing is starting to become standard in engines designed with film in mind, time for Cycles to jump on board in the near future I guess.
Can somebody make a exporter? Will somebody make a exporter? Is a exporter what I need to use Renderman