I updated a particle demo I originally wrote back in '96 to work with the Oculus.
It's still only first pass, I have not tuned any of the stereo parameters,
nor have I worked on the VR-UX yet.
It currently only compiles on Linux (Tested on Ub12.04LTS).
Will work on OSX soon.
you can get it here: (but you will have to compile yourself)
you will also need these:
The Oculus SDK for linux
glut or derivative (sudo apt-get install freeglut3-dev)
tbb (sudo apt-get install libtbb-dev)
cgtoolkit (sudo apt-get install nvidia-cg-toolkit)