Seems like the cross buy will be different for each game. Read an article stating...
"Taking the stage at its pre-TGS press event, Sony announced a new Hot Shots Golf game as one of the program's first adopters -- citing a price reduction, rather then a free game, for users who pick up either the PS3 / Vita version of the title. In contrast, Sony stated at Gamescom that buyers of PlayStation All-Stars Battle Royale and Ratchet & Clank: Full Frontal Assault would receive a second copy of the game for free upon purchase, indicating that cross-buy discounts may vary from title to title."
http://www.engadget.com/2012/09/19/ps-vita-and-ps3-cross-buy-more-discounts-less-freebies/







