There's a new article dedicated to SoftQuadro4 on the Russian site NV World. Along with comprehensive research and benchmarking this article provides download links for the infamous SoftQuadro4 Script Pack, which is able to turn your GeForce4 series card into professional Quadro. The article was written by Unwinder, the author of RivaTuner Utility.

SoftQuadro4 Script Pack Has Been Released