> I like Aleksandar's solution quite a bit because it also works inline > e.g. as src_org[:lang de]{Meine deutsch ist zher schlect!}. In > principle this means that you could leverage the org-babel and org-src > buffer system to get flyspell results in that language in line as well > (though I don't think transporting overlays into the original buffer > has been implemented). Best!
Oh wow, I'm learning lots of new things today, including inline-babel in Org. I'm not sure highlighting typos in src-blocks is necessary. I think it's enough if you can see them while you're editing the block.