I plan on getting an iPhone this week, and I have to admit I know next to nothing about jailbreaking. I haven't found a resource that has answers to my questions, so I was hoping that you guys might have a few answers from me. 1) As far as Cydia goes, what exactly is it allowing me to do? It basically sounds like its going to let me install apps on my phone that aren't in the official app store, but I don't completely understand it. Their own website doesn't do a good job of explaining it. 2) What is a repository? 3) Does jailbreaking and installing Cydia not affect the core functions of the iPhone, such as placing calls and connecting to the internet? Is it possible to get a virus or something on your iPhone when you jailbreak it? 4) Do Apple or Verizon have any way of detecting that my iPhone has been jailbroken? 5) What safety issues with jailbreaking are there, if any?