You can actually see the lua usage by peeking into the .ipa iPhone packages (they are just .zip files). Maybe android and other systems are not much different.

I've seen at least the lua levels described there.

You can see it on the indie level editor: http://www.badboll.nu/acme/able/

Also on the dissassembled apk (it is compiled lua by the way, so you might need this[1] to see it more clearly).

[1] http://chunkspy.luaforge.net/

As an aside, are you from Edessa?