yes it is absolutely legal
It is not illegal but will invalidate any warranty.
Jailbreaking a phone is partially legal and partially illegal. I have a post regarding this http://www.techlucid.com/2013/11/is-jailbreaking-illegal-or-not/
It is. The only problem is that it voids your warranty which means, if it breaks due to the jailbreaking, you won't get it fixed, or get a new one for free.
yes have fun why u'll see
Yes but if you have a warrinty then it takes away the warranty and apple wont take it back
yes it is if you do it to coustomize your ipod/iphone and not to download paid for apps for free
By jailbreaking it.
Jailbreaking will void your iPhone's warranty.
Not yet, but technically it is still illegal. Dont listen to others if they tell you its legal. The DMCA exemption only goes for the iphone; that means ipod jailbreaking is illegal
no an additional app is used to pirate apps, its called AppSync and is available in the crackulous repo, not sure of the exact address off hand. you then download apps via appulo.us. so no jailbreaking does not = pirating. jailbreaking is perfect legal, even if apple wishes it wasnt.
According to an exemption to the Digital Millennium Copyright Act, jailbreaking and unlocking are perfectly legal right so there is absolutely no need to worry about it. Use trustworthy jailbreak services only.
You cant without jailbreaking it.