ZiPhone is a free, open source and all-in-one jailbreak / unlocking tool for iPhone and iPod Touch. The latest version of the unlocking software supports the new v2.0 iPhone OS and more international networks. The developer warns users not to upgrade to iPhone 2.0 firmware when it's made available if they want to have fun with their iPhones.
As you might already know, I'm a huge fan of the ZiPhone iPhone Unlocking/Jailbreaking utility. It's so easy to use and only takes seconds to run. There's more good news about ZiPhone today as version 3.0 has been released.
It is able to hack any version of firmware from 1.0.0 through 1.1.4, and as mentioned previously, the process is so darn simple. Among the changes in 3.0 are a new embedded application installer, and support for customized plugins. It should also solve out any 'grayed-out' Wi-Fi issues.