At least when it comes to distribution in Japan, that is. Straight from the proverbial horses mouth we hear:
Tokyo, Japan, (Jan. 8, 2009) – Square Enix Co., Ltd. (Square Enix) today announced that Square Enix and Ubisoft Japan entered into an exclusive distribution agreement under which Square Enix is entitled to distribute UBISOFT Group games exclusively in Japan starting April 2009.