The whole Lost Planet 2 platform fiasco has led to quite a few gamers scratching their heads in confusion, and justifiably so. The game was first mentioned by Capcom's R&D Keiji Inafune in an interview with Famitsu magazine, when he stated both Lost Planet 2 and Dead Rising 2 would be released for the PS3 and 360 in 2009. However, when the game was later officially announced via the XBox Live Marketplace, only the 360 specified as the platform. Capcom's VP Christian Svensson even later admitted, sheepishly, "[Lost Planet 2's announcement] is complicated, it's confusing, I do understand that it's confusing how it was announced. It's not clear".
And while a definitive answer is still not available, Capcom has dropped yet another hint that Lost Planet 2 will indeed be headed to the PS3 eventually. The Japanese publisher recently published their E3 2009 line up via their community blog. Lost Planet 2 will be there, however, they specified that it was "currently" only for 360 and PC. The use of the word "currently" would seem to indicate that it will be coming to another platform eventually.
And it's pretty safe to assume, that platform WON'T be the Wii.