GeoHotz is back in the Jailbreaking game defying Dev Team by releasing first ever Universal Jailbreak for iOS 4.1 that Jailbreaks iPhone 3g, iPhone 3gs, iPhone 4, iPad, iPod Touch 4g on 4.0-4.1 and beyond .
The Jailbreak is still in beta, and windows only, but it works.
You can find all the details directly on his website, limera1n.com
Update: official download is available.
As per GeoHotz:
limera1n, 6 months in the making
iPhone 3GS, iPod Touch 3G, iPad, iPhone 4, iPod Touch 4G
4.0-4.1 and beyond+++
limera1n is unpatchable
untethered thanks to jailbreakme star comex
released today to get chronicdev to do the right thing
brought to you by geohot
Mac and Linux coming soon
follow the instructions in the box, sadly limera1n isn’t one click
that’s the price of unpatchability
as usual, donations appreciated but not required
still in beta, pardon my ragged edges
zero pictures of my face
Update 2: Step by step guide
How to Jailbreak iOS 4.1 iPhone 4, 3gs, 3g, iPod Touch
NOTE: If you rely on an unlock, do not update to iOS 4.1 yet. Either use TinyUmbrella to update to iOS 4.1 without update baseband, or wait for PwnageTool.
Step 1: Open Limera1n and connect your iPhone, then click on “make it ra1n”.
Step 2: Now wait for the device to enter recovery mode:
Now, hold “Home” + “Power” buttons, then release the “Power” button and wait for the device to enter DFU mode:
Step 3: Next, you should see the limera1n logo on your iPhone’s screen. Please wait while Limera1n injects the bootrom exploit to your iDevice.
Wohoo, your iPhone is Jailbroken
Step 4: Launch Limera1n app from your iPhone, and install Cydia and restart. You would have everything Jailbroken and in-place.