Atlus has confirmed that Persona 4 is coming to the PS3. It'll be a digital download of the PS2 version, and will cost $10 when it's out on April 8.
If you don't own a Vita, and have never played a Persona game, and you are a human being who likes good times, you simply need to play this game. If you've got a Vita, though, or are thinking of getting one, the Vita version has a few extra features this edition won't (some cutscenes, items and social links), so it's the one to go for.