A while back, there was a piece of documentation on NVIDIA's binary blob driver that said that it was impossible to run monitors out of both GPUs in SLI mode on Linux. Seeing as it was probably around 2010/2011 when I last saw this, has anything changed in this regard? I run three monitors out of my single GTX 670 and I'd like to add another 670 in SLI mode to be able to run another monitor at 2560x1440, which I can't do over HDMI. Any news in this regard?