TeX-GX Reborn!
Wow! Check this out:
http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&item_id=xetex
Written by Jonathan Kew and designed to work with a standard TeX install, it is TeX-GX reborn!
From the docs:
The fundamental features of XeTeX that set it apart from TeX are that it works with Unicode rather than 8-bit encodings, and has the ability to use Mac OSX’s advanced typographic services (AAT: Apple Advanced Typography). In particular, it can take advantage of virtually all the advanced features of AAT fonts, such as contextual variants, complex ligatures, alternate swash forms, variation fonts, etc.
They really need to open source this, though.
