Sony's answer to Super Smash Bros., PlayStation All-Stars: Battle Royale, is in development for PlayStation Vita.That's according to the LinkedIn CV of a Sony employee, spotted by The Gaming Liberty, which lists Battle Royale for PS3 and Vita under "Current Projects".The listing is the latest hint that the PS3 bruiser could be headed for handhelds, after developer SuperBot teased a possible Vita version in a recent interview.Asked if there's any chance we might see a Vita version of the game, director Omar Kendall replied, "Maybe... Stay tuned."