Re: real subscripts and superscripts?

[Karl Berry]

    Maybe I would favor using x^{2}y in textual context too, since there is
    no good solution, and it is simpler to implement and explain ...

Ok by me.  Doing the simple way (always add braces) first seems
reasonable; if it turns out that the feature gets used enough and people
really don't like it, the output can always be tweaked later.

I can add these to texinfo.tex and texinfo.texi, etc., easily enough.
Do you have time to add it to makeinfo?

Thanks,
Karl