Namco's being pretty good about keeping things even on a multiplatform level.
Games like Soul Calibur and Ridge Racer get ported to all consoles. Sony wants the Xenosaga series to be Sony-exclusive, so they make a new series that they're supposedly putting on the exact same level as Xenosaga, and make it Nintendo-exclusive. Sony wants the "Tales of Destiny" games (which were on the PlayStation) to stay Sony-exclusive, so Namco revives the old "Tales of Phantasia" series (which was on the SNES in Japan), and makes it Nintendo-exclusive.