The quad-cores have arrived and the first out of the blocks is LG's sequel to its dual-core Optimus 2X. The Korean phone maker has apparently recruited its "best engineers "on this wafer-thin slab of power and it shows; the phone is light and slim. It's taken a detour from the Prada Phone stylings we've seen on the Optimus Vu and L-series, but looks noticeably more mature than last year's efforts, with Android's Ice Cream Sandwich in attendance -- with a few tweaks.