It's official. Nokia's just taken the wraps off its worst-kept Windows Phone 8 secret: the Lumia 920. The device, announced at the manufacturer's event in New York City today, is a spiritual successor to the 900 that first broke onto American shores and can largely be seen as a response to critics of that former device. With a dual-core 1.5GHz Snapdragon S4 CPU (the same one that drives the the current US supremos, the HTC One X and
