A few hours ago the Dev Team released a public version of redsn0w (version 0.9.6b4) which can jailbreak iOS 4.2.1 on all devices and install a working Cydia, also on the iPad. As we wrote last night, though, this one’s a first jailbreak for iOS 4.2.1, and it’s a tethered one.
This means that unless you have an older device (iPhone3G, older iPhone3GS, and non-MC iPod touch 2G) you’ll be forced to manually boot in a “jailbroken state” on every device reboot using redsn0w on your computer. And considering that many jailbreak tweaks force you to reboot your device, you can guess a tethered jailbreak it’s a real pain to deal with. Read more







