I was not even looking for it either. Its called facetracknoir, similar to trackir I think its called but for a fraction of the price. Actually $0 if you have a decent webcam hooked up to your computer. I thought it was going to be a hassle to install and configure. I just installed it, left everything at default, pressed the start button then started AC and suddenly I have head tracking. I didn't even have to change anything in AC, it just works! Its pretty cool, seems to work quite well actually. And if you want to get fancy and tweek, theres apparently dozens of filters and option and stuff. Works with most games too! Cool find for zero dollars. I will definitely be donating, some folks put a lot of work into this it seems.
Peter
Peter