Well i wanted to buy an iphone with more data storage because 8gb is not enough for me. How would i go about transferring all the data from an 8gb to a 16gb. I've heard you can keep a backup of one and load it into the other one through itunes. The 8gb is jailbroken and the 16gb has to be a 3GS would this cause complications? Would i have to jailbreak the 16gb THEN backup the 8gb to it? Or is this impossible?