Ultrasn0w , Download UltraSn0w Unlock iPhone 3G OS 3.0 Baseband 04.26.08 , after a long wait Ultrasn0w is released, now you can download ultrasn0w , there were alot of bugs that's why you people waited so long. But now the only jailbreaking tool for iPhone 3G 3.0 firmware with baseband 04.26.08 Ultrasn0w is released.
You must first jailbreak your iPhone 3G 3.0 with Redsn0w 0.7.2.
Steps to Install Ultrasn0w and Unlock iPhone 3G 3.0 Baseband 04.26.08
1. Go to Cydia and add repo666.ultrasn0w.com to your sources
2. Reboot your iPhone 3G.
3. Enjoy your iPhone 3G unlock.
Note: T-mobile users should disable 3G before using ultrasn0w.
Disable 3G Mode in iPhone 3G
Go to your iPhone 3G Settings -> General -> Network and turn off 3G Mode.
-> Jailbreak your iPhone 3G 3.0 (QuickPwn 3.0 will be released by Friday, you can wait until then)
Post your results if you have jailbreak you iphone 3G.