JailBreak for Iphone OS 3.1.2 – blackra1n
First of all let me tell you, WHAT IS JAILBREAK???
jailbreaking an iphone means making your iphone ready to install thirdparty applications.
Iphone n Ipod touch only allows you to install applications approved by apple. All the other application cannot be installed on a stock Apple device. That means there is no way you can install a cracked/pirated version of an application. Also there are lot more cooler applications for these devices which are not being approved by Apple. i think you have heard about the Google Voice application which is not approved by Apple at the first time it is submitted. The later is history, I’m not going to talk about it here.
For all these, there is one and only one solution is there, and it is called JAILBREAKING an IPhone or IPod Touch.
JAILBREAKING is totally different from UNLOCKING.
UNLOCKING means make the iphone usable in all carrier networks. In stock conditions almost all iphones are supposed to work with only one carrier. Because of this we cannot use iphone if we changed our country/ something like that.
So here in I’m talking about the latest JAILBREAKING utility called blackra1n. Geohot’s Blackra1n lets Windows users jailbreak the Iphone OS 3.1.2 on all Iphone and Ipod Touch models regardless of the hardware generation.
His blog says,
So, what is blackra1n? blackra1n is a 30 second ALL device 3.1.2 jailbreak. Even the ipt3, but the ipt3 is tethered. In order to boot it, just rerun blackra1n.
Warning 3g and 3gs unlockers, do not upgrade to 3.1.2 using iTunes if you want to keep your unlock. Baseband cannot be downgraded. Check out the dev team’s offerings. Also blackra1n doesn’t hacktivate.
All you need to do is plug in your Iphone or Ipod Touch using the standard USB sync cable and follow the instructions. It does not unlock the Iphone so that you can use it on another carrier and there are still some problems with Ipod Touch third generation devices, apparently.
Check Out the Home Page for this @ JAILBREAKING UTILITY HERE
The link To download is HERE

