Hi there. Visiting Florida at end of August for 2 weeks. Rather than me using my UK sim while im there, I was thinking of getting a Pay as you go sim card while there just to keep data charges down and such. I know its a holiday, but I like to play with Gowalla, so its more of something just to keep my costs down rather than using the O2 sim card ive got from the UK. Its an iPhone 4 ive got, so, need a micro sim, or quite happy to get a mini sim, and I can cut it down myself with scissors.