Old News: RedSn0W to Jailbreak Your Old iPhone Running the New 3.0 Firmware

Redsnow is a sort of a jailbreaking and unlocking swiss-army knife for older iPhones. Redsn0w is an easy to use, multi-platform, multi-device jailbreaking and unlocking (iPhone 2G only) tool for theiPhone 2G (original iPhone), the iPhone 3G (but not the 3GS) and also the iPod touch (first and second generation). Currently it is available for Windows and Mac [...]
Source: iPhone watch