Given Apple's move with the Mac Pro to a default dual-GPU configuration, is there any chance that we'll soon see an iMac with dual mobile GPUs? While the iMac makes a great general purpose computer, it's missing desktop GPU performance which is important to some users (like myself); having dual GPUs with SLI/Crossfire support for gaming in addition to OpenCL support seems like a win/win for its product line. An iMac like this would have fewer "professional" options like Xeon CPUs and desktop GPUs, but might make the gap between the different desktop product lines a little softer ($4,000 for a top-end iMac with included screen vs $5,500 for a nice Mac Pro without a monitor). I realize that Mac OS doesn't support SLI/Corssfire for gaming today, but that support could be added in a future OS update (easily?).