The only reason they dont work is because theres such a small install base that even optimal sales would leave the publishers with little or no profit. (for exclusive games)
Vita also isnt good enough for PS3 ports and games on PS3 are struggling as they are so on vita they would be unplayable.
Theres hope for the next handheld though since PS4 games are either 1080p and/or 60fps so the resolution and frame-rate can be sacrificed and still leave the next Sony handheld with a decent version of the game. They just need to take there time and not price the majority of the market away from it.







