Good times! It looks like Dev Team’s UltraSn0w unlock works with an iPhone 3GS that’s been jailbroken via purplera1n. But be warned: Some users are reporting mixed success. On Friday, George Hotz (aka the guy who unlocked the original iPhone 2G) released his purplera1n iPhone 3GS jailbreak tool. On the Dev Team’s decision to wait until iPhone OS version 3.1 is released, Hotz sniped: “Normally I don’t make tools for the general public, and rather wait for the dev team to do it. But guys, whats up with waiting until 3.1? That isn’t how the game is played

Not that anyone ever had any doubts that the Dev Team would be able to work their magic on the 3GS, but this is quick : within a week of the phone’s launch, the hackers say they’ve figured it out. The Dev Team says that the 3GS is vulnerable to the same “24Kpwn” bootrom exploit that plagues the iPod Touch 2G—an unpatchable, un-updatable route of access for jailbreakers. Additionally, they expect to be able to unlock the phone with the ultrasn0w tool, using familiar techniques . What seems a little odd about this is that the 3GS would be so susceptible to hacking, and in such way that had been identified months ago.