Your comments

Might be useful yeah. I presume it should support multiple outputs as well?

This has now been implemented in Beta 0.29


Are the input/output types the same?
Hey Jason!
Please put these two requests in new threads
Added a page to the Wiki now: http://acegikmo.com/shaderforge/wiki/index.php?title=Intersection_Fading

You can make your own using the code node, for now :D
More info: http://acegikmo.com/shaderforge/wiki/index.php?title=Waveforms