Chronic Dev Team has updated Greenpois0n to version RC4, adding support to jailbreak iPod Touch 2G (MC and MB Model) running iOS 4.1. This guide will show you how to jailbreak iPod Touch 2G (MC & MB Model) on iOS 4.1 with Greenpois0n on Mac OS X.

Note: THIS ONLY WORKS FOR MAC. A Wi-Fi connection is required for Cydia updates.

STEP 1: Download Greenpois0n (link here)

STEP 2: Connect your iPod Touch to the computer via USB, power off your iPod Touch and launch Greenpois0n jailbreak tool.

STEP 3: Click “Jailbreak” button.

STEP 4: There will be a series of on-screen instructions, so follow everything you’re told to do.

STEP 5: Now your iPod Touch is in DFU Mode and can be jailbroken. The jailbreak process will start automatically.

STEP 6: Your iPod Touch is now jailbroken. Click “Complete!” and you should see a “Loader” icon on the iPod Touch’s SpringBoard.

STEP 7: Press “Loader” icon and “Install Cydia”.

STEP 8: After Cydia is installed, a window will prompt you: “Do you want to remove Loader from your device”. Click “Remove”.

STEP 9: Through a Wi-FI connection, launch Cydia and installation files will be downloaded and automatically installed.

Congrats! Now you’re running an iPod Touch jailbroken on iOS 4.1.

Follow our step by step guides below to jailbreak iPhone 4G/3GS, iPod Touch 3G/4G on iOS 4.1 (Mac).

Follow our step by step guides below to jailbreak iPhone 4G/3GS, iPod Touch 3G/4G on iOS 4.1, and iPad on iOS 3.2.2 (Windows):