The Chronic Dev team have made available a new version of "greenpois0n," a release-candidate beta that offers untethered jailbreaking of devices running iOS 4.2.1, such as the iPad, third- and fourth-generation iPod Touch and iPhone 3GS or 4. The program can jailbreak without the need for SHSH blobs or other pre-existing hacks, and allows users to alter theme components, install alternate settings and use apps unapproved by the App Store -- a potential security risk, but one some users desire to gain extra functionality.
