Hey guys, I'm currently looking at going over to the states for my tertiary education in the coming months and in the process of budgeting, looking at what to expect for my phone bills and hopefully deciding on one while I'm at it. I currently plan on keeping my current HTC with my New Zealand sim so I can continue receiving local stuff, and am particularly interested in an iPhone because of cloud syncing and ease of use with tracking and whatnot with my lineup of Macs. I'd see myself as a moderate user, although I'm mostly fussed over data. What can I expect price/performance/cap-wise? Can data be easily tethered onto my macbook or should I plan for a 4G USB stick too? What carriers would you recommend? Are phones usually carrier locked or can I expect it to work outside of America if I do not stay on after my studies? Thanks!