as you proboably already know Nvidia's 3D Vision works by a process called active sutter so they project an image for each eye one after the other at 120hz. So if this is the case why cant I buy any tv or monitor that has 120hz or more and run nvidia 3d vision glasses through the usb on my gaming rig and have the active shutter work. THANKS
Because it has to have a 120hz input, not just a 120hz output. Most 120hz TVs just interpolate frames between the frames and don't actually have a 120hz capable (dual like DVI or HDMI 1.4) input. Pretty much if it's not on NVIDIA's approved list it won't work.
Yes the mini HDMI on a 580 is 1.4a. The HDMI standard is unlikely to change any time soon, it's the same standard 3d blu-rays use and TV manufacturers are using. For viewing movies or TV 24hz per eye works fine so there is no reason to update it for general consumers. I'm not sure what you mean by when will the tech improve, the tech works fine, you just have to spend the money to buy an actual 3d vision compatable display.