How to Jailbreak Your iPod Touch 3G, iPod Touch 4G Using Limera1n (Mac)
These are instructions on how to jailbreak your iPod Touch 3G and iPod Touch 4G using Limera1n for Mac. Limera1n supports iOS 4.0, 4.0.1, 4.0.2, and 4.1. You can find the Windows version of this tutorialhere
Step One Open your web browser of choice and navigate tohttp://www.limera1n.com. Click theMac logo at the bottom of the screen.
Step Two When prompted save the download to your desktop.
Step Three Double click thelimera1n.zipfile from the desktop to extract the application, then double click to launch.
Step Four Connect your iPod to the computer and click the largemake it ra1nbutton
Step Five You iPod will now be placed in recovery mode.
Press both the power and the home buttons.
When Limera1n asks you to, release the power button.
Your phone will now be in DFU mode
As limera1n performs its exploit you will see the image of a lime raindrop on your iPod.
Limera1n will let you know when it is complete.
Step Six After you power back on your iPod you will see a new icon on the SpringBoard entitledlimera1n. Press it to continue.
Step Seven Once Limera1n opens selectCydiathen press theInstallbutton at the top right of the screen.
Step Eight Once theCydiainstallation has completed you must reboot your iPod.
Step Nine After your iPod has restarted you can run Cydia. Let it do all the necessary updates.
NOTE*: To remove thelimera1nicon from your desktop you can relaunch the app and tap the Uninstall Limera1n button or install CyDelete from Cydia then use it to delete the application.
***A big thanks goes to Geohot who made this jailbreak possible.