Nippon Ichi (NIS), big in Japan but little known elsewhere, will publish future games on Xbox 360. NIS specializes in peculiar turn-based tactical RPGs with titles like: Hour of Darkness, Phantom Brave, La Pucelle: Tactics, and Rhapsody: A Musical Adventure. Previously, NIS only made games for Sony Playstation, (i.e., PSX, PS2, and PSP.)
Note: Most of NIS games have never been translated into English or released outside Japan. According to Wikipedia and other sources, NIS has only recently attempted to branch out into different media and outside Japan - especially into the US market.