It is only illegal to jailbreak any type of "Pad" at this time. Ipods,iphones are still legal to jailbreak. All bought after January 13, 2013, are illegal to "unlock". Not the same thing.. Also true that if you jailbreak any device, the manufacturer will not honor a warranty, nor service it. So as swagnuggets suggests; make sure you know what to do if something does go wrong.
It may void the warranty if you have one. But the risks are minimal to damage your IPod if you follow the tutorial carefully, but first know what you want to do with a jail broken IPod. You can play GBA (Gameboy Advanced) Games on it or other similar things. Look for cool thing to do with such a thing. Apple puts restrictions on your device to make sure you dont break it, but theyact as if their consumers are a bunch of monkeys with the strict things you can do with it. I enjoys jailbreaking mine simply because I'm a pokemon fan. To revert your ipod just update it. I'm sure there are tutorials for that also even though it's extremely easy. As for the illegal situation it means "unlocking" not jailbreaking. Unlocking is the process of freeing to work on any carrier (Verizon, spint, or At&T). You have problem with this because you have an Ipod. As for jailbreaking, jailbreaking is the process of circumventing Apple’s security measures in iOS to install tweaks, hacks, and mods that aren’t allowed in the App Store.