LimeRa1n is Online!!

limera1n, 6 months in the making
iPhone 3GS, iPod Touch 3G, iPad, iPhone 4, iPod Touch 4G4.0-4.1 and beyond+++
limera1n is unpatchable
untethered thanks to jailbreakme star comex
brought to you by geohot
hacktivates
Mac coming in 7 years
OUT Of BETA!!
Donations keep support alive!!
Tutorial BELOW

md5: fc6f7d696a57c3baede49bdff8a7f43f

Tuturial:

Here's the instructions to jailbreak iPhone 4, 3GS on iOS 4.1 using Limera1n, PLEASE read the important notes at the end of the post:

STEP 1: Download Limera1n for Windows from here.

STEP 2: Connect your iPhone to your PC via USB then launch Limera1n and hit “make it ra1n”

STEP 3: You will have to get your device into DFU mode by following the steps on the screen shown by Limera1n.

STEP 4: Now, Limera1n app should be shown on your iPhone's home screen. Limera1n will pwn your device forever now.

STEP 5: The jailbreak should be done now. Tap on the limera1n icon on your device and install Cydia.

IMPORTANT:
You have to keep some points in your mind, first, Limera1n will not unlock your device (i.e. you will lose unlock if you upgraded to iOS 4.1 and used limera1n).
Limera1n would mess up GreenPois0n jailbreak release.

Here’s a video tutorial, of how to jailbreak an iPhone 4, on iOS 4.1, using Limera1n: