Works on an EZV as well if you re-patch it with the EZV DLDI patch.  Haven´t played much with getting the soundbanks to work, since it doesn´t say how to do it and I can´t read chinese, but if you ignore the chinese menu on the left I now have a fully functional French-English dictionary on my DS.  Wow, one of these things is actually USEFUL for me... creepy.