Hi All, I'm going to america (california) in may and would like a sim data package so that I can use google maps and general data for whatsapp etc. What is the best way to do this /have reliable internet? I will be going for 16 days and doing quite a lot of driving so a fairly reliable connection would be good (I will download google maps beforehand!) Willing to pay whatever it costs, but if theres an option that costs circa £40 with tethering that would be good (allow me and mrs to use phones when relaxing). Currently we're both on BT mobile which doesnt offer good roaming options.