don't you have issues with doing that for HDMI.

1st issue EDID information which would the player use.
2nd issue which res should it pick for each display.

Maybe 1080p for the projector then 720p for the plasma/LCD...but if the plama/lcd cannot accept 1080p and the projector can only accept 1080p then you are stuffed with what to choose from.

Which one....

Just playing devils advicate

Michael