Acer brought it's A-game to CES, by which we mean the "world's thinnest Ultrabook." The 13.3-inch Acer Aspire S5 just launched and we got our mitts all-over its super-svelte magnesium and aluminum exterior. We've got some photos in the gallery below, with more to come -- people are literally elbowing each other in the gut to get shots of this thing.