@ Keymaster - Hi another request...
This one is pretty crazy and you will probably not be interested in it, but here it is:
I know you have plans to make a layering system for material creation in the future. So I just want to point that Cycles Renderer is under Apache License, so the code can even be used with commercial softwares.
My request would be to make Corona support Cycles nodes. This way Corona would gain a layering system and for Blender users, we could make our materials with Cycles and take advantage of tthe interactive feedback, then easily convert them to Corona.
I know it's probably not in your interest to make something like this...but anyway...
Kind regards