I say it should be possible. The system requirements mention OpenGL (although most of his other games are pure SDL), so some conversion to ES might be required, but I doubt that will be very complicated.
Incidentally I just ported one of his other games "Passage", you can download it here: http://repo.openpandora.org/?page=detail&app=passage.foxblock
I would attempt to port Sleep is Death, too, but sadly I don't own it and therefore don't have access to the necessary files (and while the game certainly looks very interesting, I don't think it's my type of game and therefore I have no plan to purchase it in the near future).