I don't see Bluetooth itself as an end- its purpose isn't surround gaming headphones with head tracking, but rather passable audio quality for mobile stuff as well as basic data connectivity with a low power draw. It's not really the right technology today, at least, but it is probably the best technology to be extended for this kind of application. Eventually. For now, such endeavors are probably best left to various wireless USB techniques. Logitech probably has a lead here given how long they've been in that game.