So, about that LG Optimus EX we saw last week — it’s now gone official in South Korea and it’s looking slightly more alluring. Announced yesterday, this Gingerbread-coated handset is the first to ship with NVIDIA’s revamped 1.2GHz Tegra 2 processor, which means it’ll support 1080p video, much like the Galaxy S II . It also boasts a four-inch LCD with 480