It may just be possible with a little perseverance (and a knowing of iPod/iPhone/iPad app programming. :3) If someone can find an open source version of UTAU, I -MIGHT- be able to form a team that can port it to iDevice. :D
Of course I realize that I would have to get permission from the team who created UTAU as well. :3
Of course I realize that I would have to get permission from the team who created UTAU as well. :3