It was just hours ago when iOS 4.1 released then a new hacker called Pod2g found an exploit to jailbreak iOS 4.1. Now, the big news that he successfully could be able to use it on iOS 4.1 which will provide a lot of things especially for iPhone 3G users as HDR Photos.
But that doesn't mean that the jailbreak is ready. There's still a lot of work to do, the iPhone dev team will work on the unlock and this hacker will work on jailbreaking iOS 4.1. For your info, Pod2g is not from dev team. As usual we will keep you informed.