iphone os 3.0.1
You Can Jailbreak iPhone OS 3.0.1
In addition of my previous post about Fix iPhone OS 3.0 SMS Vulnerability With iPhone 3.0.1, therefore, all iPhone 3.0 users are advised to upgrade to iPhone 3.0.1, but the question now is iPhone 3.0.1 jailbreakable and can unlocked? Yes as dev team has assured that redsn0w and ultrasn0w can be used to jailbreak and [...]
Dev Team Advises Users Not To Upgrade To iPhone OS 3.1 Beta Firmware
The reasons as to why Dev Team decided to delay the release of JailBreak for iPhone 3GS until iPhone OS 3.0.1 firmware is out it will only benefit only few people and Apple to be expected to to release iPhone OS 3.0.1 firmware soon to block ultrasn0w and the iboot exploit.