The rating logos are unfortunately printed on, but at least they're not overly obnoxious like some countries' rating logos. Both Batman Begins and The Dark Knight come in nice, clear plastic slipcovers, too. As for all their editions being in English, I purchased Universal's Gladiator and King Kong from the same site and they also arrived in English, so I'm guessing that yeah, all Netherlands Digibooks are in English. Good luck!
EDIT: I took pics of my Batman Digibook haul
here before. You can check them out before ordering.