iPhone Dev Team's carrier unlock Ultrasn0w is now updated to v 0.92 fixing the cosmetic missing carrier name bug on devices with firmware 3.1.X having baseband 04.26, to install the latest Ultrasn0w update make sure your iPhone is connected to internet and launch Cydia, it will display the new update from where you can install it.

Jailbreak and carrier unlock for latest Apple iPhone 3G S seems to be here, the famous iPhone Dev Team has now released an video demo displaying successful carrier unlocking on official 3.0 firmware which means it should be able to unlock iPhone 3G S which comes pre-loaded with same operating-system version, the DevTeam has decided not to reveal the exploit named UltraSn0w until iPhone 3G S finally hits the stores tomorrow.

The iPhone Dev Team also announced that official updated versions of PwnageTool and QuickPwn working with iTunes 8.2 for jailbreaking iPhone 3.0 firmware are under development and will get released soon.