This is my first post in here so i am sorry if something goes wrong.. I would like to ask few questions about how to jailbreak my new yesterday bought iPhone 3GS 16 gb. 1) First: I havent opend the package yet so it needs to be connected to computer, should i do it or what ? i am not sure if it install new official firmware and does not allow jailbreaking? 2) Can i use Apples Appstore on my iPhone as with i have heard called '' Cydia '' 3) And can i get 3rd Party applications on iPhone if i jailbreak it? 4) Can i remove the jailbreak from iPhone and restore it to original if something goes wrong?