This
one might annoy Apple a little, but the hacking community has
supposedly been able to create an untethered jailbreak for iOS 5.1 on
the iPhone 4. It’s been a while since the release of iOS 5.1 and a
jailbreak for it has not existed until now. The jailbreaking software
isn’t out for public download yet but a lot of the more recent iPhone 4
users are hoping for it to be available soon. We did hear about a
possible untethered jailbreak for iOS 5.1 on the latest iPad, but that
one is nowhere to be found either.