Hi Im from Spain. Im in a trip in New York Manhattan. I need a little help . Im looking for a gevey sim for my stay here to use a prepaid card with my iphone 4 unlocked :_(. Witch model it's the best at this moment? Any phisically shop where to buy int manhattan? Wich company prepaid card will work best AT-T or verizon? Edit. Im near chinatown, is there any shop ? Thx in advance and sorry for my English .