We wouldn’t read too much into the description, regardless – it’s all pulled from the PS3 version. “MGS4 pushes the power of the PLAYSTATION 3 to its limits with cutting edge graphics and surround sound,” it says.
“It also aims to be the hallmark title for the new DUALSHOCK® 3 controller,” aw, nostalgia.
Chances are this is entirely fake.
Update: yes, this is a mistake, as confirmed by the retailer on Twitter. “Fake” added to the post title to reflect the updated information.