Aug 19, 2008 · Here is just a few simple things that i did to my iPhone 3G after i jailbroke it. I highly recommend that u jailbrake your iphone if u have one. the link for the ROMs for the NES application is

Nov 02, 2010 [Fluff] iPhone 3GS downgraded to iOS 4.1. Thanks for all This is a subreddit dedicated to Jailbreak(ing) info for old/unsupported iOS versions, and devices (iOS 7 and lower for example). This is meant to be the same as /r/jailbreak but for those who need support they can't always find there. iPhone 3GS Jailbreak Made Easy ***Any Firmware Supported Dec 15, 2011

For those users here is good news iPhone Dev team has release Redsn0w 0.8 which also includes the support for iPhone 3GS 3.0 jailbreak. Initial release of Redsn0w to jailbreak iPhone OS 3.0 was buggy and didn’t work on PPC based Mac. After that iPhone Dev team has released redsn0w 0.7.2 fixing bugs and crash issue and now redsn0w 0.8 is here.

iphone 3gs 8GB Jailbroken (Bakersfield SW) $150 - JLA FORUMS

Jailbroken iPhone apps - AppleRepo.com