>    Yes. (We could happily make ltunicode loadable by plain, but that might
>    not be that helpful.)
> I was wondering about that.  It actually sounds like a good thing in
> terms of maintenance to me.  

I would strongly recommend doing that, for many many reasons.  Also, widely advertise its existence in case anyone else for any reason wants to use this data, for example to make another format for a Unicode engine.