Have you discuss here already that Apple changed SDK to allow cross-tools ?

[Colin Holgate]

Here's an article about it, that includes the relevant passages:

http://www.appleoutsider.com/2010/06/10/hello-lua

It seems more geared towards Electronic Arts games, where they use Lua to do overall game control. It's hard to say whether Rev apps would get away with the same conditions, because where as Lua is just controlling a bit of game logic, and not doing much to make the entire app function, Rev's scripts would be completely in control of what the app is doing. So it might fail the "Application may use embedded interpreted code in a limited way if such use is solely for providing minor features or functionality..." part.