Since discovering freetrack 3 years ago, I practically don't play without it. It's range of use and compatibility is actually quite great for software of it's kind.
Developers who exclusively supported the TrackIR interface in a newer game: Arma 2, added official Freetrack support in update patches. (thanks Bohemia Interactive)
Newer Hardware like the PS3 Eye, with high frame rate capabilities, only required it's
own drivers to work properly with Freetrack.
The amount of independent support in past software suggests success, and desire for future support.
(List of games supporting FreeTrack)
If anyone uses Freetrack as much as I do, please support em'
-thanks