Much awaited iPhone OS 3.1 Jailbreak seems to be on the horizon but this time instead of the usual iPhone Dev Team, Chronic Dev Team seems to be taking the crown for 3.1 jailbreak as hints on their coming jailbreaking utility Greenpois0n start appearing on internet, the Chronic Dev Team earlier tweeted that iPhone OS 3.1 is still vulnerable and they are working on a jailbreak - now to make things more interesting they have posted a video showing proof-of-concept demonstrating the exploit working on iPod Touch 3G (video after the jump), they have named the exploit Greenpois0n and the site is already online waiting to be updated with a working jailbreak for iPhone OS 3.1 ;).