An eagle-eyed attendee of the Paris-based Japan Expo happened to notice that one of the PSP demonstration units on display to showcase Soulcalibur Broken Destiny was running a yet-unreleased firmware 5.55. No visible changes were observed, so if we had to wager a guess, this is another minor update. Nevertheless, it piques our interest, leading us to believe that the update could be game-specific or was designed to further patch up security holes that have cropped up within the past couple months, much to Sony’s dismay.