Looks like AT&T is on track to hit that year-end 15 market LTE goal, after all. John Stephens, the operator's CFO / SVP, just went public with plans to officially launch that 700MHz service in New York City sometime this month, according to a statement made at the UBS 39th Annual Global Media and Communications Conference. The network's currently undergoing testing in the Big Apple, as we reported in our Nitro HD hands-on and