Hi Belo - your best and cheapest bet is to find a local SIM with a good data rate. If that's no good, then you could try an international SIM card like the ones sold by www.gosim.com. These are specifically designed for international travel and while local rates are always going to be cheaper, their rates are significantly better than roaming rates using your regular SIM card. It's a pay-as-you go SIM, so you pay for everything up front and there are no hidden charges or expenses - everything is clearly laid out and explained. You get a UK and US phone number, and there are a range of other services and an excellent customer service function. Data can be a bit expensive, so I definitely suggest making the most of free wifi where you can.
It is mostly for the data usage that I want it. And the maps. I've got so used to using google maps on my phone. Last time I went I was lost without it! Also, for the GPS on my phone. My brother has got a cheap prepaid cell that I can use, but I'm being ungrateful and looking for more than he's offering! However, I don't want to spend $80! So, I want it all and I don't want to have to pay
Does anybody know if such a thing exists? I've got an old AT&T iPhone (unlocked, I've used it on Vodafone over here) which I would like to use whilst on holiday in California in 4 weeks time. Is there a US equivalent of Giff Gaff? I want data usage, and calls/texts. The only options I've found seem to be $80 or more. An equivalent in the UK would be much cheaper. Am I searching for the wrong thing? Does anybody know of such a SIM card?