I want to buy an 'On The Tab iPhone' from best buy, but I want to know if I can use my old SIM card. I currently have a phone, but would like to get a new phone. I would rather not have to buy an unlocked phone though (simply because it is more expensive). Another question I have is: If I bought that phone, would it need to be unlocked in order for me to use it, or could I unlock it without having to pay for the whole plan of that phone?
I'd love to hear what suggestions you have!