Okay, but about the telltale tool being compatible, it technically isn't.
When that company ported Out from Boneville to OSX, they didn't use the telltale tool. (as far as I know) If they had used the telltale tool, then all of telltales games could instantly work on a mac. But I think they had to re-write the engine.
I guess, the bottom line here is, does telltale want a new market for their games? And is it worth the time?