[shane92]

i was browsing in cydia today and i came across a app called FWchanger. it changes the plist file that contains the version of firmware you are running. i understand that some games and apps dont run on 3.0, well maybe if this app works on it you could make all your games and stuff think that is on 2.2.1 and run on 3.0. I would try this out but i have a 2g and there is no JB for it as of now.

[bteamer]

Erm yeah. That would totally, completely not even do anything to help at all. FWChanger just changes the plist so applications that require specific firmwares to download are fooled into thinking you are on that firmware. It doesnt have any support for other firmwares at all. Sorry.