This is supposed to be out today, another NDS RPG... this one's a turn-based 1st person one...
"All-star production staff! Direction by Kazuya Niinou ( Trauma Center: Under the Knife ), story design by Shigeo Komori ( Shin Megami Tensei: Devil Summoner ), and sound design by Yuzo Koshiro ( Actraiser , Streets of Rage )."
http://www.atlus.com/etrian/
The articles on the official website, under "Columns" -> "Director's Diary" and "Localisation Stories" are both interesting.