It appears that the iPhone hackers aren’t about to give up on an untethered jailbreak as apparently a new exploit has been discovered just over a week after the same hacker posted a video to YouTube of the latest version of Greenpois0n, that video you can view (here).
According to an article over on iPhone download blog, iPhone hacker and Chronic Dev Team member @pod2g used his Twitter account to tweet ” Hey, another untethered vulnerability found! 
http://twitpic.com/3ujze3”
According to Mobile Clues, this new exploit can be preserved for the next Apple iOS firmware including iOS 4.3 and iOS 4.2.5.
Thus it looks like another untethered jailbreak solution for the iPhone will be coming at some point in the game, that is until Apple steps in and closes the exploit, which is something they usually do in this cat and mouse game.
