iPhoneUnlocking (http://www.iPhoneUnlocking.com) have released a one-click iPhone unlock solution to jailbreak and unlock iPhone 3G, 3Gs and iPhone 4G with the latest firmware version iOS 4.0.1.
The folks at iPhoneUnlocking say that, upon unlocking your iPhone, you won’t lose any of the features and functionality of the iPhone. The US$24.99 Unlock iPhone 3G 4.0.1 and Unlock iPhone 3Gs 4.0.1 software comes with a 30-day guarantee, lifetime updates and lifetime support.