I am new to this iTunes purchasing Applications. My son (11 yo) has an iPod Touch and he wants to buy Applications. He originally had a iTunes gift card that that he used and had a remainder of $0.50 on it. He wanted to buy an application that costs 0.99. iTunes shows 0.50 and we hit buy. It went on his iPod without a problem but I am not quite sure where the extra 0.49 cents came from. I remember using a charge card to set up the account.... Did Apple just put a 0.49 cent charge on my charge card? If that is what they did, does that mean that I don't have to buy iTunes gift cards and all the charges will just go on my Credit card that is on file with my iTunes account?? Thanks in advance.