Re: [idn] Reality Check

[Keith Moore]

> > hint: the cost of dealing with two different name representations is
> > greater than the cost of dealing with a single one.
> 
> No kidding. With UTF8 they only do it once. With ACE they do it twice.

but due to backward compatibility and deployment issues, the ACE 
representation is the essential one.  The UTF8 one is not needed.

as I've said before, the time to move to a UTF8 representation in the
DNS protocol is when we upgrade to something better than DNS.