It uses an exploit in the ipods security system to install cydia. That's pretty much it. It ranges from pdf exploits to system exploits, but its perfectally safe, and its not illegal. Its usually used by users, hackers, and app developers for windows
jailbreaking the ipod touch is legal. But if you use the tool that gives you all apps free it is illegal.
It is impossible to get an installer on an iPod Touch without jailbreaking.
It is up to you. No matter what you have on your ipod will become messed up when Jailbreaking...
You cannot get all apps for free without jailbreaking an iPod Touch. It is not possible.
No.
no
you cant
Yes, jailbreaking does void the warranty.
As of today (November 24th, 2010), jailbreaking an iPod Touch is not illegal. Is it 100% safe? No.
No, not without jailbreaking your iPod 2g.
no, but i woudnt try it
No. But it will void your warranty