Earlier today, EBgames listed a SKU and release date for a PlayStation 3 version of Volition and THQ's Saints Row. As you can see by visiting the original URL for the PS3 Saints Row page, that data base entry has since been removed (just as 1UP predicted). They just can't find what we're looking for!
You know what that means: it's definitely coming. And that shouldn't come as a surprise to almost anyone. With no "Only For Xbox 360" branding and THQ's desire to actually make money, it only makes sense to port the action adventure title to Sony's console.
We'll obviously let you know when THQ formally announces the game's existence.