According to users on IRC, PS JailBreak PS3 game dumps are now hitting the Internet, however, according to PS3JailBreak.com a Sweedish Web site reports that not all PS3 game backups are working currently.
To quote: "Its been well known that games that feature files over 4gb will not work on external hard drive (due to fat32 limitations). So it's quite possible thats why these games don't work. We'll keep you posted."
PS JailBreak PS3 Game Compatibility List:
PS3 Games Reported as Working with PS JailBreak:
• Race Driver Grid
• Fight Night Round 3
• Skate 2
• FIFA 08
• FIFA 09
• Resistance Fall Of Man
• Mirrors Edge
• MX vs ATV Reflex