Yes it is now ready and working and tested on Linux - Windows and OSX just a week ago.
I plan to work on video stream but it is not really implemented yet...
I suppose it would be better to stream down from the library to spout, but you can work with what I did already.
You can use it by downloading the PapARt library, set it to use the OpenNI2 drivers and you could get the RGB, IR and depth streams.
I just created a simple demo with both color and depth streams here.
You can follow the quickstart guide on the forum http://forum.rea.lity.tech, install the library, your camera have fun !
The data is not awesome though. I just put it so we can see something interesting .
The depth values in the PImage is like this:
byte dValue = (byte) ((d - 300.0F) / 3000.0F * 255.0F);
So the depth (in millimeters) is packed between 0 and 255 (a color amount in processing) and the same on the 3 channels. You can recover the color like this :
float depth = (red(px) / 255f) * 3000f + 300;
You could get the depth back inverting the computations.
That's all. If it all works for you !