Quote Originally Posted by oj88 View Post
Not sure I understood your post, but FWIW, the PDF vulnerability is already there even before performing the jailbreak. In fact, Comex exploited this back door and used it to gain access into iOS to perform the jailbreak.

Supposedly, Apple is working on iOS 4.3.4 to patch this up. But then, you'll lose the jailbreak. To patch the security flaw without having to resort to running the to-be-released iOS 4.3.4, you can run the "PDF Patcher 2" from Cydia.
In any computer ecosystem, you have two choices: be closed, or be open. Either choice carries with it a series of pros and cons. With Apple, it chose to be closed. There is no official open marketplace for the iPad. Everything is done through the App Store. The reason is to establish a firm control on the platform and minimize leaks and breakages. Of course, any system can be broken, thus you have Jailbreaking. However, note that a Jailbroken device can no longer take advantage of warranties.

To clarify my statement, it wasn't meant to be specific on the PDF vulnerability. It was meant to illustrate the fact that Jobs never liked open systems in terms of how his ecosystem is managed. Of course, Apple itself supports open standards (such as HTML5), but the way these standards are implemented in the Apple ecosystem is via proprietary means... like you can only sell apps officially through the App Store, or you can only compile code via Apple's tools, or you can only create official Apple apps if you are a member of the Apple Developer network.