Welcome To iPhone World

Let me start by saying that I love iPhones, particularly doing with them what other people call "Jailbreaking." This is a process in which you overwrite the current iPhone software and add something called "Cydia" to your applications. There are many reasons to do this, one such being the ability to add a backround to your iPhone. There are other reasons too, with cydia, I can download Cycorder, an application to take videos on a non-3GS iPhone. Below are a list of Jailbreaking applications

This is Blackra1n. It is the most (new) recent Jailbreaking software. It was coded by GeoHot-RC1 and is a very simple Jailbreaker. When Apple released the new 3.1.2 iPhone software, GeoHot-RC1 was the first coder to release a jailbreak option, even if it wasn't that sophisticated. In light of his choice to release early you get a midgrade application that can only jailbreak, not change activation processes or anything remotely sophisticated. It purely runs, no user input allowed. You can download it here.

This is PwnageTool. It has evolved from QuickPwn and it now the most up to date jailbreaking software avaliable. Just as Quickpwn was, this software is kept up to date by the Dev Team. Complete with a brilliant GUI interface this application is one of the most amazing jailbreaking experiences. Speaking as one who has utilized all options, I know this to be a fact. It has more or less the same layout as the old QuickPwn but has more detailed options as one gets farther into the applicaion and jailbreaking process.
You can download this application here.

This is Quickpwn. The predesescor of PwnageTool. It was the first official release for jailbreaking your iPhone. It was remarkable, a legitimate way to jailbreak ones iPhone. I downloaded it the day it came out, used it a week later, it is fairly easy to use. This application was eventually turned into Pwnage Tool but it still is in every you jailbreaker's heart. I still keep a copy of this original applicaion for "Sentimental" purposes.
You can download this application here.

This is RedSn0w. During the programming gap between Quickpwn and Pwnagetool someone, helped by DevTeam released RedSn0w. This application is not layed out as well as Pwnagetool or Quickpwn. It is a simpler gap applicaion. Designed to keep the public satisfied while the Dev Team worked on PwnageTool 3.0.
You can download this applicaion here.