Arkham City comes out in 6 days in Europe and that date was my countdown. Either there would be a new CFW /J-whatever or I unhack my PS3, I want to play that game on October 21. I don't assume we'll see something in 6 days so it's time for some unhacking Basically I don't want to leave traces of the jailbreak on my PS3. Will a formated hard disk leave any traces? What about my PSN account on the PS3, will it be gone after the formating?