Limera1n has been now released by Geohot and you could use it to jailbreak iPod Touch 3G 4.1 iOS firmware. We have already written many guide for jailbreaking your idevice and here is another one. Follow the steps given below to jailbreak iPod Touch 3G 4.1 iOS using Limera1n.
1. Download Limera1n from here.
2. Connect your iPod Touch with the PC.
3. Launch Limera1n and click on â€ make it ra1n â€ button.
4. Now youâ€™ll have to enter recovery mode.
5. Press and hold the home and power button together.
6. Release the power button when asked.
7. Now wait till your phone enters recovery mode.
8. Now you could see the Limera1n app on your screen.
9. Launch the app and install Cydia.
Thatâ€™s it! You have done it!