Matrox permits the combining of their dual display cards into what appears to the OS to be a virtual wide display. Under XP/W2K you get what appears to be one very wide display instead of two distinct monitors.
If other card makers support this option, and to be honest I haven't checked to see if my ATI cards can do it, then it's possible the vid card driver could present the abstracted single display to the software layer that Alienware is building, such that you do get a wide diplay for gaming on multiple monitors.
Hey, maybe it'll make Parhelia usable as a gaming card.
It is not best to swap horses while crossing the river. -- Abraham Lincoln