> I'm happy to maintain such a package that's intended to live in tex/
> xelatex/inputenc.sty if you like; otherwise, it should probably be
> rolled into inputenc.sty proper.
Although I don't understand the details, I think it would be best if a
maximal collection of "old" LaTeX files will sail seamlessly through
xelatex, and I suppose that would mean accommodation in the regular
inputenc.
I hope that texlive 2008 deadlines don't interfere with doing it
right.