> A serious problem with ISO-2022 is that every country should agree to adopt 
> it as the national standard but it's not likely in the near future.

You seem to be misunderstanding.
ISO-2022 only requires registration of final character, thus, the
agreement between countries isn't needed.

> In Korea, ISO-2022-KR has been obsoleted by EUC-KR and nobody is actually
> using it nowadays.

Actually, EUC (except EUC-TW) is a subset of ISO-2022.

> We might need to invent a new universal coding standard to replace 
> Unicode. :)

heh.

Seriously, there is other way to do it right.

That is to create framework to handle *ANY* codeset.
This is what *I18N* means, and any codeset includeing UTF-8,
EUC-*, ISO-2022-*, Big5, Shift-JIS, and others can be used
in this way. (People often misunderstand that using UTF-8 is
I18N. But that is not I18N, but only L10N for UTF-8).
--
soda