NIS America's Jack Nilda confirmed at E3 yesterday that the company's home branch in Japan is working on a new title for the PLAYSTATION 3. He did not provide any details about the game aside from the fact that it will take greater advantage of the hardware's technological capabilities than Disgaea 3. Nilda noted that the company is also interested in working on an RPG with motion capabilities for the Wii, but the PlayStation hardware will continue to be the primary focus for the foreseeable future(due to the larger number of hardcore gamers). Lastly, Nippon Ichi is set to announce two new titles: one before the end of July and one in September or October. Only time will tell whether or not one of those games ends up being the mysterious PS3 exclusive.
http://scrawlfx.com/2008/07/nippon-ichi-software-confirms-new-ps3-title