iPhone 3G only (for now)Last week after the announcement of iPhone 4.0, iPhone OS 4.0 got jailbroken the next day. Today redsn0w released their beta software for Jailbreaking iPhone OS 4.0 for iPhone 3G
redsn0w, one of the jailbreak team, released their beta software to help you jailbreak your iPhone OS 4.0 if they are on iPhone 3G model only. They are also the team who released the veency video on iPhone OS 4.0 last week.
Please note that, the jailbreaking tool is currently on BETA, alot of the software ain’t working! So please, only install and jailbreak if you know what you are doing.