RE: inputting characters by hexadigit

[Drew Adams]

> C-x 8 might be a very good choice, since it's already used to
> enter other non-ascii chars. I think it would make a lot of
> sense to extend it with other combinations for various Unicode
> chars, as well as hex-codes for arbitrary chars.

This sounds like a good idea to me.

It would of course require some changes to the doc - e.g. the Emacs manual, node
Unibyte Mode, which describes this (as being for Latin-1 only). 

(I also suggest adding some mention of `iso-transl-ctl-x-8-map' to the Elisp
manual.)