Namco Bandai has the Hunter X Hunter license and are working on a new game for PSP. Jump reports the upcoming Hunter X Hunter game will follow Gon and Killua (who attacks with a skateboard!) as they take the Hunter Exam.
Prior to this title, Konami made several Hunter X Hunter games with the license. Hunter X Hunter for PSP is slated for release this fall and is probably the title Namco Bandai is teasing.