Engadget published a howto video of LimeRa1n – iOS 4.0-4.1 jailbreak utility for iPhone, iPod Touch and iPad:
Engadget published a howto video of LimeRa1n – iOS 4.0-4.1 jailbreak utility for iPhone, iPod Touch and iPad:

Famous hacker Geohot is back and today he released the latest iOS 4.1 jailbreak. It is called LimeRa1n and supports iPhone 3GS, iPod Touch 3G, iPad, , iPod Touch 4G with iOS firmwares 4.0-4.1 and beyond. It can also hacktivate your device, so there is no need in phone SIM-cards and other tricks.
This software is still in beta and was updated 3 times in last several hours. So use with caution.
There is Windows version only for now. Geohot plans to release LimeRa1n for Mac and Linux soon. You can Download it here.
Some users report that they have jailbroken their iOS 3.2.2 iPads successfully with limera1n, while others report that they tried, but failed.
Do not forget to backup.
For many users of iPhone 3GS and iPhone 4 with iOS 4.0.2 now there is a hope to perform jailbreak using LimeRa1n and unlock using ultrasn0w. We recommend NOT to do it if you have not saved your SHSH keys. You can try, but if something goes wrong without SHSH keys you’ll have to restore to iOS 4.1, and there is no unlock for iOS 4.1 (possibly forever). Just wait for PwnageTool utility.
DevTeam reported that Limera1n uses a different exploit than SHAtter, so they will not release SHAtter utility, they don’t want let Apple fix both security holes. However they plan to release PwnageTool using the same exploit.
Known bugs:
Here’s a quick changelog of recent beta releases:

RedSn0w 0.9.6 b1 for Mac OS X was released a while ago. Today DevTeam created a version for Windows users. RedSn0w 0.9.6 b1 can jailbreak iOS 4.1 and iOS 4.1 running on iPhone 3G or iPod touch 2G.
You can download it here.
Redsn0w is easy to use:
This is still beta, so there might be some problems:
Any Windows users seeing “Waiting for reboot” for too long (more than 20 seconds or so), please try “shaking” the JB process by unplugging then replugging your USB cable (while letting redsn0w continue to run). Also, try using a USB port “closer” to your computer (as opposed to on your monitor or behind another hub).
As usual DevTeam reminds us:
IF YOU USE THE ULTRASN0W UNLOCK, PLEASE WAIT FOR PWNAGETOOL TO SUPPORT 4.1. DO NOT USE REDSN0W
That’s because to use redsn0w at 4.1, you need to already have updated to official 4.1 from Apple. If you do that, you lose the ultrasn0w unlock (possibly forever).

Chronic Dev-Team member Joshua Hill has just confirmed that the new Greenpois0n jailbreak, which will allow you to jailbreak Apple’s latest iOS 4.1 software, is expected to be released this Sunday. To make the event more special, Dev-Team has decided to launch the tool at 10 past 10 AM on October 10th 2010. They will be releasing multiple tools, some of which will help you update to 4.1 without losing the possibility of unlocking your baseband for other carriers.

Today the new Apple TV has been jailbroken by hacker MuscleNerd from DevTeam. He used the SHAtter exploit. This means that hackers were able to gain full access to the device. Here is MuscleNerd’s comment on twitter:
AppleTV 2G SHAttered and jailbroken (not quite sure how to run apps yet!)
MuscleNerd and the rest of the Dev-Team will probably create a public release of some utility soon. Here is a youtube video showing off the jailbroken device:

Twitter user with nickname StealthBravo recently confirmed that the new Apple TV can be restored in iTunes as well as any iOS device, easing the way for jailbreakers to bring new functionality to the set-top box. This means that the hackers soon be able to offer us tools, as they currently do for other iOS devices, to save SHSH blobs, jailbreak the Apple TV, and install 3rd party software.
Moreover, Apple TV offers a Micro-USB port for connectivity, but the port also offers a means for users to physically connect the device to computers to employ the techniques required for jailbreak of operating system.

The new exploit is called SHAtter. It was developed by hacker pod2g a few months after hacker p0sixninja from the Chronic Dev Team discovered the crash. The same exploit can be used to jailbreak and iPad with new firmwares. So iOS 4.1 and maybe even iOS 4.2 is not a problem any more. Soon we will see the utilities from DevTeam to perform the jailbreak.
The DevTeam published a video if a jailbroken iPod Touch 4G. Take a look:

DevTeam recently released new version of redsn0w to jailbreak iOS 4.1. New RedSn0w 0.9.6 b1 supports iOS 4.0 and iOS 4.1 running on iPhone 3G or iPod touch 2G.
There is only Mac OS X x86 version, that you can download here.
Redsn0w is easy to use:
As usual DevTeam reminds us:
IF YOU USE THE ULTRASN0W UNLOCK, PLEASE WAIT FOR PWNAGETOOL TO SUPPORT 4.1. DO NOT USE REDSN0W
That’s because to use redsn0w at 4.1, you need to already have updated to official 4.1 from Apple. If you do that, you lose the ultrasn0w unlock (possibly forever).

If you’re interested in theming your iPhone/iPod touch, but don’t want to jailbreak your device, there is now a solution. Using iPhone Explorer, you can now change an app’s icon to something you like better. Best of all, the software is free!
All you need to do is open up iPhone Explorer and navigate into the app’s folder, located in /Apps/appname.app/appname.app.app (where appname is the name of the app you want to change and devicename is the name of your device). Within that folder, find the png file that is the icon, named something like icon@2x.png for an , or Icon.png for iPhone 3GS and below. Back that up and replace it with your own icon. Make sure the icon is in PNG format and is 114×114 pixels for the iPhone 4, 57×57 for the iPhone 3GS and earlier. After rebooting your phone, you should see the old icon replaced with your new one.
This trick will only work with third party apps, which means that you are stuck with the icons for apps that come with your iPhone.

You cannot use JailBreakMe method to jailbreak and unlock iOS 4.0.2 on iPhone 3G. However you can still jailbreak and unlock iPhone 3G using redsn0w. Here are the instructions: