I am looking at StraightTalk as a possible carrier. The idea of buying an unlocked smartphone and being able to buy SIM card and have non-contract plan is appealing. I am wondering what the service is like especially with data usage as I am thinking of using it with an unlocke4d Galaxy Nexus from the Google Play store. NE WI looks covered, but the coverage map is vague with whether that coverage is for voice and/or data. Since they use GSM, would the data coverage be the same as AT&T/T-Mobile's network? Should I worry about roaming?