Hi friends it's a good news that iPhone Dev Team have released redsn0w multi-platform, multi-device jailbreaking tool for iPhone OS 3.0. It also allows you to unlock the 1st generation iPhone (iPhone 2G).
It is a good news. I guess it is a good release and it is also compatible with other versions of iphone. It looks like the the iPhone dev team had been working hard behind the scene to make products that are useful to customers.
It's a good thing that the iPhone development team has not stop from making useful tools even for the old version. That makes you feel good if you have an old version of iPhones.