Дешевая альтернатива ТрекИру....

[Neoton]

There will be 2 models of the
trackIR3, the standard and the pro. The TrackIR 3 standard is our new entry
level headtracking system, delivering maximum value with increased precision
over the TrackIR2™. Let us know which model you would prefer and we
will have it sent out to you as soon as it is available.

Кстати ссылку дай на информацию!! Охота почитать.
http://games.naturalpoint.com/ ента не работает