One of the things that people would first do with an iPod or an iPhone would be to jailbreak it. Jailbreak refers to the process of modifying the operating system of the device in order to unlock some limitations placed by apple.
Here are some questions on jailbreaks to the device:
Should you jailbreak your iPhone or iPod?
The thing is during the earlier versions of the iOS, there was really a very big tangible benefit to rooting your iPhones or iPods. There were quite a number of functionalities that you would have been only able to unlock if you would use a jailbroken. However, some of these capabilities have slowly been baked into the newer versions of the iOS. For example, the folder method of stacking apps already existed via jailbreak but was only introduced in a latter version of the iOS.
Given that, it may be better to just stick to the original version of the Apple devices instead of having to jailbreak them. Of course, there are still some applications and functions that can only be accessed via a jailbroken iPhone or iPod.
What is your current OS, firmware and model number?
When jailbreaking an iphone or an iPod you must first know what your current OS version, firmware and model number is. This is because the type of jailbreaking tool that you use would depend on these 3 things. Remember that if you try to jailbreak an iDevice using a tool that is not compatible, you actually run the risk of bricking your device (making it unusable).
You can check for these things by going into the settings of the iPod or iPhone. They are usually found in the “About” section of the iPod. Before jailbreaking, ensure that you have the software that is meant for your current set up.
Is your jailbreak tethered or untethered?
You should also know whether the jailbreak that you would be using would result in a tethered or untethered jailbreak. A tethered jailbreak would mean that you would need to connect to your computer every time you would turn on your iPhone or Ipod. So you should take great care in (1) only putting your phone to sleep and (2) not running out of battery. On the other hand, the untethered jailbreak would allow you to turn on and turn off the device without having to connect to a computer each time.
The recommendation is that people use the untethered jailbreak. However, the tethered versions usually come out much quicker than their untethered counterparts.