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Don't fret, though not true 6dof support, by using a version of the software that supports mouse emulation for TrackIR, you can use it in-game.

Here's a video of me shooting down a jet using my TrackIR:
http://www.khaclan.com/clan_downloads/oak.avi

I grabbed a vid of flying around in the allegedly unsupported game of Battlefield 2.
Check it out here:
http://www.khaclan.com/clan_downloads/oak.avi