The Official US PlayStation site often showcases the latest games for the PS2, PS3, and PSP. Now they seem to be branching out a bit, if the description of Metal Slug Anthology is any indication.
It's not technically an error. I mean, it is the greatest array of Metal Slug titles ever assembled for the Wii after all. Probably not a good idea to remind customers that the game is already available on a major competitor's system, but who am I to question Sony's marketing tactics?