Hi there, I am thinking of visiting New York next week (leaving it late as usual!) and wanted to know where I could pick up a prepaid data SIM. I am bringing my iPad along and thought it would be handy having a 4G sim to use while we are out and about. Do these SIMs need to be ordered online and possibly delivered to my hotel before my arrival or are there shops I can go to where I can pick them up? Am thinking 1GB or maybe 2GB should be enough as I'm coming for a week! Thanks for the help!