I've recently bought my Nvidia 3D stereoscopic set and try it on everything I have.
Here is what happens with A-10:
1) Nvidia 3D driver recognises is as "DCS: Black Shark" and tells me the compatibility was "good" (so far so good ;)
2) One can turn on the 3D mode on the emitter
3) But there is NO 3D experience at all, no immersion, regardless of the "Depth" setting. It just looks like an ordinary 2D screen, while the shutter glasses are definitely working.
I know, you are much more interested in seamless joystick support, but what about real 3D?