Geohot has released the waited Limera1n jailbreak tool for Windows and is available to download. You would Download Limera1n for Windowshave to wait for the Mac OS X version of Limera1n which will made later available to download. Now you could download Limerain for Windows to jailbreak all devices on iOS 4.1 and iPad on iOS 3.2.2.

Limera1n for Windows

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

known bugs
3GS new bootrom is broken, fix pending
some people need to restart to get the Cydia icon to show up after installing
some people still don’t have windows

Download Limera1n for Windows from here.

Don’t leave! We are ready with our jailbreak guides using Limerain.