An example of how to get a wire frame material in cycles that merges with a base colour in a fancy fading fashion. The picture says it all really, used blender nerds tutorial to get the wire frame to work and then got the fading to work myself. Almost defiantly not the best way to do it haha.
Haha yea :L I kinda thought I might try make it a similar render to your's as a sort of comparison between cycles and BI, I hope you don't mind. However for the life of me I couldn't figure out how to make it transparent like yours :P
Looks great!