You dont think he is reffering to making his own case or modding the existing case??
Well he called the topic
"case modding" and talked about adding somewhere to keep pen and paper to his
case and asked if anyone else had ideas for modifying 'it'( by which he means the case as reffered to in the title and his text) or examples of mods already carried out.
So I assumed he meant mods to the case of the reader...dont know why I thought that

and the accesories subforum does say "Storage cards, cases, etc. - original, 3rd party and homebrew"
so it seemed the natural place for it all