LG officially took the wraps of the Optimus GK Android smartphone. Made for the Korean carrier KT, the newcomer packs all the functionality of the LG Optimus G Pro, but in a smaller body with a 5" display. Like its bigger brother, the LG Optimus GK is powered by a Qualcomm Snapdragon 600 chipset, whose four CPUs tick at 1.7GHz. There is 2GB of RAM and 16GB of built-in...