I have been keeping track of this game for over 2 months and I just recently learned that it was going to be released in June. I was a bit skeptical about whether it really was going to be released in the U.S., but below is a link to the game with english screens and vids. Enjoy:

http://ps2.ign.com/articles/777/777211p1.html

Here is the japanese site:

http://grimgrimoire.jp/index.html

More discussion about its release along with Dragoneer's Aria and Soul Nomad can be found on the official NIS forum.