David,
(If you wish to try this for yourself, you will need a font that includes both the Old Italic block of Unicode and the appropriate OT features. I will share the one I’m making if anybody is reall interested.)
I'm currently working on the bidi support for babel, so having your font could be very useful (for scripts other than Arabic or Hebrew). Could you send it to me? (As to your question, I'd like to help, but I don't know how to fix it, sorry). Best, Javier -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex
