Apple has released two software updates back to back, iTunes 9.0.3 and firmware 3.1.3 for iPhone 3G, 3GS and iPod Touch. With the release of new firmware, tools for jailbreaking and unlocking emerge as well. If you are on jailbroked and unlocked iPhone/iPod Touch, we recommend NOT to upgrade your devices to firmware 3.1.3 now. Wait for proper tested jailbreaking and unlocking tools for firmware 3.1.3, also it's crucial to mention that every jailbreaking tools doesn't necessarily come with unlocking facility, so you have to careful. If you want an unlocked device, you will have to wait for a tool that jailbreaks and unlocks firmware 3.1.3 as well.
We'll share complete details about all available jailbreaking and unlocking tools in market for this latest firmware on iPhone 3GS, 3G and iPod Touch 2G(Newer Models) and iPod Touch 3G. Mean while, you may like to go through our guides and tutorials for unlocking iPhone 3.1.2 firmware using ultrasn0w and blacksn0w.
UPDATE 1: Dev-Team has released redsn0w/redsnow 0.9.4, iPhone 2G and iPod Touch 1G/2G(Older Models) can be jailbroked and unlocked(iPhone 2G only) now on the latest iPhone 3.1.3 firmware, click here for downloading the tool along with installation tutorial.
UPDATE 2: Sn0wbreeze 3.1.3 has been released. Please follow the step-wise procedure posted here to jailbreak your iPhone 2G/3G/3GS (Old Bootrom only) on firmware 3.1.3, after jailbreak, you can unlock iPhone 3G or 3GS via ultrasn0w or blacksn0w. To unlock iPhone 2G, please follow the instructions posted here.
UPDATE 3: Sn0wbreeze v1.5 has been released, it brings support for iPod Touch 2G (Old Models). Step-wise instructions are posted here to jailbreak iPhone/iPod Touch.
UPDATE 4: Unlock iPhone OS 3.1.3 Baseband 05.11.07 With Blacksnow, refer here for step wise instructions.
UPDATE 5: Sn0wbreeze v1.5.2 has been released, it brings FIX for users who are facing issues in 64K Windows OS.Contact Us for News Tips, Corrections and Feedback