As topic, however i need someone else to step forward and do some research with me.
When connecting to online play, the ps3 querys three specific urls, these are :
resistance-muis.scej-online.jp
resistance-mas.scej-online.jp
resistance-svo.scej-online.jp
The above is for the japanese version of resistance.
My theory is that either via hosts file or by proxy application, the urls are redirected to those of another region copy, however i only have the japanese version of the game, so to test this further i need someone with a US copy, and someone with a EU copy, to connect up their ps3 so it is connecting through your pc, and using either ethereal or something similar, log the packets from when you're starting the game to when you reach the menu with "Ranked games" at the top, once here stop the logger and from top to bottom search for these urls, there will only be THREE, and you need to paste them in the order from first to last.
Hopefully with some poking around we'll be able to bypass entirely, the regional lockouts for the game