I just got my iTouch (v1.1.3) an am interested in Jailbreak. However, I have questions. Can somebody give me a link to the apps that can be installed (hopefully with descriptions of what they do)? Will installing this wipe the data on my itouch? Will installing this void my itouch warranty? Can somebody provide a step-by-step guide on how to install it? (including downgrading my 1.1.3 to 1.1.1?