Right now specific models of iPhones, iPod touches, and iPads running iOS 4.2.1 can only be Jailbroken via the tethered method which means they need to be plugged into your Windows or Mac PC and rebooted using redsn0w. You can also build your own custom firmware with a modified pwnage tool, tethered Boot tool and terminal/cmd.
Now iBooty is another windows based nifty boot tool from iH8sn0w which does the same thing. Just add a file to your iOS device via SSH and then run iBooty whenever you need to boot into the jailbroken kernel. Mac users will need to continue using redsn0w or the tethered Boot tool. Catch the video in action.
iBooty: iPhone and iPad Tethered Boot Tool
Until the untethered jailbreak exploit is made public, windows user can use iBooty utility which will be released very soon from now. We will keep you updated as and when the tool is available. Do not forget to follow us on twitter or join our facebook fanpage to keep yourself updated on such iPhone, iPod Touch and iPad hacks. via FSM