Need help for anyone in the USA and knows about pre-pay/pay as you go sim cards. I have an Apple Store UK bought unlocked iPhone 5 and heading to the US next week for a short trip. Could really do with access to data without paying the extortionate roaming fees. Is it possible to buy a pre-pay nano sim from one of the providers that will allow me to use data. Don't need text or voice - just purely data. Am I right in thinking I could get a data only sim for use in iPad mini as it is same sim size? Any help much appreciated and costs too. Also I'm assuming that my UK iPhone will work in the US ok?