Cycles Nodes Help

Where can I find these nodes:
I downloaded a recent build from graphicall but i could not find them…

They’re likely in DingTo’s GSoC branch of Blender. To my knowledge none of them have been integrated into trunk yet.

Do you know when they will be ?

Google Summer of Code runs through the end of September, but I suspect the real answer is “whenever DingTo finishes writing it and gets it merged into trunk.”