Nicolas,
> There is the #+LATEX_HEADER:. Is a keyword specific to Beamer
> required? It would by symmetric with #+BEAMER: but I have never
> needed it before.
Something like
#+LATEX_HEADER:\AtBeginSection[]{\frame{\thispagestyle{empty}\tableofcontents[currentsection]}}
is not interesting to a LaTeX article output, but perhpas in a Beamer.
Or it might want to use a more 'fun' font for my slides while sticking
with kpfonts for the article version, e.g.
#+BEAMER_HEADER:\usepackage[math]{anttor}
#+LATEX_HEADER:\usepackage[light]{kpfonts}
But perhaps (probably!) it could be sorted out on the LaTeX side,
e.g. via beamerarticle.
–Rasmus
--
Vote for proprietary math!