There may be a problem with this technology.. Whilst head tracking has been around for many many years, it became notorious in the video games sector after "Johnny Lees" published his infamous Youtube video showing a demo that he made using a Wii controller and a pair of glasses with LEDs on each side, but he didn't invent it.. It was used in professional systems long before he came up with the idea.. All he did was to think creatively about using the Wiimote in a way that it wasn't intended (i.e backwards) and demonstrate a working system which required no additional hardware.
It was then expected that this technology would soon appear in many games. Whilst the Wii system worked it was a bodge, (because you would have to use the Wiimote as a 'camera' and make some kind of head mounted LED assembly), you could simply use any camera and "facial recognition software" to achieve the same result. Even Sony demonstrated a similar system using their EyeToy to track the users 'eyes' but since then nothing.
It was odd that nothing ever came of it as it would be simply to build into a game.. But the fact is that no-one has even produced something and released it.techn... It turns out that there was a 'demo' of this in technology in Boom Blox which you could unlock as an Easter Egg.. But mysteriously, right at the last minute they ripphttp://gbatemp.net/index.php?showtopic=210692&st=45&gopid=2640128&#ed it out.. The word is that they did this because of 'Patent Infringement'.. It seems that someone 'owns' this technology and wants HUGE royalties to use it.
I am not doubting that people are working on games which use this technology but the fact that we have seen NOTHING on any platform so far, doesn't bode well... The problem is that 'head tracking' is used in professional systems and these cost many thousands to be.. I doubt if the people who make these systems want their technology used in games, where it can easily be seen that actually, all you need is a cheap low res web cam and come clever software.. It kind of undermines their business somewhat!
Saying that, GT5 is ment to use "eye tracking" so it is planned.. But GT5 has been delayed so many times, that nothing is for sure with regards to that title.
So i am sceptical that we are going to see anything like this released any time soon.
Jon