Thank for the answer and your great work on this app.
As a side note I think it is a great idea not to limit this render engine to only one 3D software, a la Fry render,( that it is slowing dying like Brazil render) having a strong app that can be used in different 3D hosts and platform is a great advantage, and I truly believe if Corona keep growing the way it has it will be a strong alternative to several artist, Plus timing is very good now, with Autodesk almost abandoning Mental Ray and VRay new prices schedule there will be a lot of artist looking for decent alternatives in all platforms.
Well that's my opinion for what it is worth ;)