According to reports, Medal of Honor requires firmware v3.50 to run. Further 
analysis claims that this is the start of things to come. It is indicated 
that all games released from NOW ON will not be playable on PS3's without 
the latest firmware. Moreover, a group of 'experts' claim it is near 
impossible for hackers to retro-hack titles so that they can be comaptible 
with Jailbreaking devices.

http://www.maxconsole.net/content.php?42578-Game-over-for-PSJailbreak-Every-game-from-now-on-will-require-firmware-v3.50

paskaites http://psjailbreak.com/news radau, jog visgi atnaujins psjailbreak 
firmware'a :)
"We will officially be releasing our support for new firmwares by October 
20th"