iFuntastic is the customization tool for iPhone. They have just released the latest version 3.0.3. This version not only supports the PowerPC processor, but it also comes with great new features. There are no jailbreaking anymore, you just need to unshackled your iPhone. You can install the new iPhone native applications easily. There are also a file browser included. While there are another great tool called iBrickr, both Windows and Mac OS X users are happy to ‘hack’ the iPhone now.