The magazine cites "insider whispers" as the source for the story, stating that the "first three" Metal Gear Solid games are set to be reborn on the PlayStation 3.
It would be a monumental release for the PS3, especially if the original Metal Gear's set to get in on the remake treatment. Sadly, Official PlayStation Magazine can't elaborate on any release details.
If it really is in development, expect this rumour to gather steam pretty quickly. Stranger things have happened.