There is a Cycles plugin that exists for EZSkin 3 P11 version that recreates the shader with the CyclesSurface node.  It works beautifully in P11 but flags an error when opened in P12.  It's annoying because recently I've been converting some Firefly shaders that were destroyed with the latest versions of P11 (illegal node connections) to Superfly.  It would be nice to repair that plugin so I wouldn't switch between the P11 and P12.