利用iPhone的PDF漏洞进行越狱的破解工具的源码。Spirit source code - a jailbreak for iPhone OS 3.1.2, 3.1.3, and 3.2 by comex-Spirit source code - a jailbreak for iPhone OS 3.1.2, 3.1.3, and 3.2 by comex

Professional iPhone and iPod Touch Programming