head tracking the next level

[vanderstok]

Although nothing new -since TIR can do this as well- I hope this takes off for the Wii. If it gets popular we will probably see a lot more alternatives than TIR which will reduce the price significantly.
If you buy TIR now, I think you'll pay mostly for the software as the hardware is basically just a (IR) webcam with some leds. Not that I'm complaining, I'm a very satisfied TIR user, but the price is just too high for the average gamer.