Rock, or "Rock Your Phone" as the app prefers to call itself, is the third and final jailbreak solution, and it is far, far different from Cydia or Icy. The core of the program is markedly different, offering pop-up installation menus and the fastest repository and app installation times around. Rock's load times are amazingly fast and its feature set great, but it fundamentally has 2 problems. First, Rock tries to legitimize the jailbreak process, which is the equivalent of trying to legitimize the black market in the real economy. But I ask you this question - would you really like to spend large amounts of money getting illegitimate apps onto your phone? Second, Rock is as backwards as Apple when it comes to installing new repositories. If a repository has been flagged as containing "inappropriate" content, Rock won't let you install it. This basically means you have no say in what goes into your jailbroken phone, which I probably don't need to remind you, was the initial reason you did it!