We 3D Vision owners (large base) will fork over good $$ for a fix for DX10 & 11 games. Helix mod only works with DX9. I also own a TrackIR 5 and your head tracking work should apply nicely to this as well. Head tracking should be implemented such that it supports the Rift, TrackIR, and FreeTrack.
The lack of 3d vision support on games like Bioshock Infinite and Assassins Creed 3 has been very disheartening. Looking forward to playing Bioshock Infinite using VorpX. I just can’t even install it until I get my Rift. 2d sucks. What’s worse? It seems like the developers are giving console users 3d more on these games than the PC users. Damn you forced DirectX 11!