It looks like the LG Nitro HD wasn't the only thing to hit New York City last night: the shiny new flagship is currently surfing on AT&T's 4G LTE network, which hasn't been "officially" switched on yet here in the Big Apple. We'll go ahead and assume that AT&T is still in the testing phases here in the five boroughs, with an official statement on its way. Whether it's here to stay or just a dry run, one thing is clear: AT&T is pulling some major speeds. Last night saw Ookla's Speedtest clocking in at 56.59 Mbps down and 12.81 Mbps up, which is almost too good to be true. Sure enough, this afternoon has already "slowed down" to 13.48 Mbps down and 1.14 Mbps up. Either way, New Yorkers looking to snag the Nitro HD on Sunday will surely be impressed by their data speeds.