Hi Adam,

Thanks for sharing.  Just for reference, there are few major modes out
> there implementing this kind of approach:
>
>  http://www.emacswiki.org/emacs/MultipleModes
>
> For example I have used mmm-mode to good effect in the past, to
> auto-switch between HTML and Perl:
>
>  http://mmm-mode.sourceforge.net/
>
>
Thanks for sharing the alternatives. The  proposed solution has the charm to
use only a minor mode which consist of less then 100 lines of lisp-code. I
thought if it is of general interest, it might be easy adoptable within
org-babel. I would prefer to use org-mode as major mode.

Best regards

Torsten