I'm thinking of jailbreaking my iphone and got some questions:
1) I found the way to jailbreak it but if I jailbreak, can i restore the phone to the way it was before the jailbreak, how do I restore the phone?
2) If I jailbreak, what will happen to the warranty of the phone? Can i restore it and then still have the warranty?
3) If Apple releases a new iOS, can I uppgrade my phone as usual?
4) Can i still use iTunes to transfer Music and stuff to my iPhone?