Filed under: Hacks, iPhone, Jailbreak/pwnage
Blacksn0w unlocks iPhone OS 3.1.2 and baseband 05.11.07

What does this mean? The iPhone can be unlocked for any GSM carrier, allowing you to use it on more than your country's authorized carrier or other carriers as you're traveling abroad.
Geohot suggests that you update to a fresh copy of iPhone OS 3.1.2 directly from Apple before performing his unlock. He has all the instructions available on his site.

![TUAW [Cafepress]](http://www.blogsmithmedia.com/www.tuaw.com/media/tuaw-cafepress-promo.png)

