Falcom, the makers of Ys and The Legend of Heroes series, have been big supporters of the PSP. While many of their games including Ys: The Oath in Felghana were initially released on PC, Falcom began making PSP exclusives. Ys Seven, Ys vs. Sora no Kiseki, and The Legend of Heroes: Zero no Kiseki made their debut on Sony’s handheld.
Speaking with Dengeki PlayStation, Toshihiro Kondo, President of Falcom, said they have a new RPG in development targeted for the NGP launch. Presumably, Kondo means Japan.
Xseed and Falcom announced a publishing partnership last year, which covered the Ys series and the upcoming PSP release The Legend of Heroes: Trails in the Sky.