This is a pretty cool project!

I especially like how easy it is to combine two shaders automatically into one. Andrew Ray, the brilliant guy behind ShaderFrog, automatically parses the shaders to intelligently merge them together -- something I've never seen before.

Andrew has also created a run-time library to make it easy to adopt ShaderFrog shaders into your own tools (sort of like how Allegorithmic has the Substance run-time library for Unity and UE4). It is available here:

https://github.com/DelvarWorld/ShaderFrog-Runtime

We here at http://Clara.io, an online 3D modeling & rendering platform, are exploring adopting the ShaderFrog material run-time.