Hello, everyone, I'm fortunate enough to be going on vacation to the Dominican Republic soon for a few days of vacationing time, and was wondering if there's anything special I needed to do beforehand to ensure proper, uninterrupted use of my iPhone while I'm there. I'm using an iPhone 4 (not that it matters), and I'm on AT&T. It's only for a few days, so nothing long-term is required, I'm just checking to see if there's anything in my plan that I should change prior to boarding to avoid any extra-high roaming fees or anything like that. Your help is much appreciated! P.S. I heard the iPhone 4 is capable of HSPA+. Is AT&T already using this or are they just rolling it out now (I thought that was their LTE network)? If I'm right there's no way I would even know if I was using HSPA+ or HSPA, correct?