If you don't feel like you're getting all you can from the iPhone App Store and other perks of the iPhone and iPod touch 2.0 software, then jailbreaking is for you. We've already shown you how to jailbreak your iPhone 2.0 on a Mac, but yesterday the Windows version of the iPhone jailbreak tool—called Winpwn—hit the streets, so now Windows users have a user-friendly way to jailbreak. Let's take a step-by-step look at how to jailbreak your iPhone or iPod touch using Winpwn. Warning: Before you dive in, keep in mind that this jailbreak method is very new. I ran into the same show-stopping snag along the way and have not yet been able to use it to jailbreak my iPhone. Others have had success, so your mileage may vary. Nothing I've been able to do so far has harmed my iPhone in any way. It's just not jailbroken. UPDATE: Winpwn has updated and is supposed to have addressed the problems many of us were having earlier. My iPhone's got an appointment with Apple this afternoon so I can't re-try it, but if you give the 184.108.40.206 version a try (again, download links on the Winpwn web site), let's hear how it worked for you in the comments. If iClarified's guide is any indication, the few remaining steps we couldn't perform work just as described below. What You'll Need Before you get started, make sure you have the following: An iPhone or iPod touch running either the 2.0 software Winpwn downloaded and installed on your computer A Windows machine. If you want to jailbreak on a Mac, check out how to jailbreak your iPhone 2.0 with the PwnageTool. You'll also need the iPhone or iPod touch 2.0 software update files. You can find the 3G version of iPhone 2.0 here, or grab the 2G software update here . Winpwn Step by Step You need to use Winpwn to create a custom version of the iPhone 2.0 software for your device, so the first thing you need to do is create that custom image using the IPSW Builder. To do this, just fire up Winpwn and select the IPSW Builder. Click Browse .ipsw for the iPhone or iPod touch 2.0 software on your computer. Point it toward the iPhone software you downloaded above. Once your iPhone software is recognized, click the IPSW Builder button to get started making your customized image. From the IPSW Builder, tick the Install Cydia checkbox. Don't check YouTube activation fix if you're an official AT&T customer. Then click the Build .ipsw button. You'll be prompted to save the custom ipsw file. Choose where where you want to save it and click Save (it defaults to the Winpwn install location). The IPSW Builder will take several minutes to create your custom IPSW image. NOTE: Winpwn had trouble for me at this point, failing several times and crashing once. I'm actually still trying to get past this point, and will update the post if I have any luck. If all worked according to plan, the following steps should go something like this: Once you've got your new custom image, go back into Winpwn and click on iPwner. You'll be prompted to choose the custom IPSW you created above. Now you need to put your phone into DFU mode, as demonstrated in the video above. Once you enter DFU mode, iTunes will open to your iPhone. Now just hold shift and click the restore button, then browse to and choose the custom IPSW file we created with IPSW Builder. iTunes will now install your custom firmware on your iPhone or iPod touch. It may take a while, but when you're done you'll be running your custom iPhone 2.0 software, complete with the Cydia installer. For more on Cydia, check out the Using Cydia section of Gina's excellent guide to jailbreaking on a Mac with the Pwnage Tool. Also, now that you're jailbroken, you can use your iPhone's internet connection on your laptop and appreciate why we need the iPhone app black market. If you give it a try and had more luck than I did, let's hear about it in the comments.