Well I spoke with the people at xpand and they spoke with mitsubishi and gave this reply.
Here is the response I got about DLP TVs:
There is nothing in the TV that can access the two different inputs similutaionusly as required for Dual View - Dual View is the mixing of two separate sources, such as two game consoles, and using Left eye information for player A and Right eye information for player B. For our TVs this mixing must be done externally, we cannot do it internally.
Texas Instruments has demonstrated this feature using an external dongle that has two HDMI inputs. It takes information from each input and creates the same type of checkerboard pattern using player A's game console for left eye view and player B's game console for right eye view. The glasses have the normal 3D setting and also a switch that will allow both lenses to be clear at the same time but only for one eye view period. Player A would select the time for the left eye and Player B would select the time for the right eye.
If at some point the game console can do this type of mixing internally and send a checkerboard pattern, then Dual View compatible glasses are required however our normal 3D mode would work.
I hope it is helpful, please let me know if I can help further.