There are going to be *at least* three desirable encodings of a person's
identity -- the 'natural' encoding in the preferred/native charset of the
person's name, some kind of phonetic-ASCII encoding that tells non-natives
how to pronounce the name, and the email/idna encoding[s] that folks would
use to exchange mail.
Folks: it has *not* been decided that there will be a different
encoding for email. One such encoding has been proposed; other
proposals have been made. This is being actively discussed, and there
should be no assumption that the discussion will end with a new
encoding.
--Paul Hoffman, Director
--Internet Mail Consortium