The focal point is actually a lot more forgiving that most people suggest. I played it at E3 and watched other son my team play it. While the effect was certainly more pronounced while I playe it myself, I still saw the 3D effect while looking on from their side. Granted it wasn't as clean but even during my own hand son with it, you didn't have to keep your head dead locked in a specifc spot to see it.
But the camera tracking idea won't work because of how the effect is created as Megaman79 noted.
The rEVOLution is not being televised







