Buying PlayStation All-Stars: Battle Royale on PS3 will grant you a free Vita copy, Sony announced today. Other games benefiting from the program include Sly Cooper Collection and Ratchet & Clank: Qforce. The initiative is called "Cross Buy" and can only be seen as wonderful news.
It's essentially the same thing seen for recent PSN games like Sound Shapes, but now for retail games. And with a name!