i've managed to get some kind of head tracking to work(similar to Johnny Chung Lee).

I use:
Ubuntu 9.10
pd-0.42-4 / Gem 0.92.2 (custom installation)

2 Infrared LEDs fixed at Glasses(powered by USB)

In order to get it working i compiled Wiilib. Prior to that i had to install libcwiid1-dev. I filled in the HW-Adress of my wiimote an it worked.

I've created a all-in-one Patch, with some OpenGL-primitives. You can download it here

Start PD with

pd -lib Gem -lib wiilib

Comments / Suggestions are very welcome. Here on in my blog.

Enjoy :)