Sony Computer Entertainment America CEO Jack Tretton made a passing mention of a PlayStation 3 edition during his company's press conference, dating it for early 2010. nope
Upon its revelation earlier this year, Lost Planet 2 was only announced for Xbox 360. Capcom later teased PC and PS3 editions, and confirmed the PC version shortly after. Given Capcom's policy against major platform exclusives, this isn't that surprising.
Still no word on the downloadable Xbox 360 demo of Lost Planet 2 that Capcom was hoping to have out around now, but the full game is due no later than March 31, 2010.