Acer has unveiled its Aspire Timeline Ultra M5 Series of ultrabooks, set to hit shelves at the end of the month. The newest addition to Acer's Timeline series has slimmed down, weighing in at 4.3 pounds and just 0.81in thick, offering what Acer called the best of both worlds: "A slim, lightweight design, larger displays, all-day battery life, and powerful Intel and Nvidia technologies," the company said. In line with the modern ultrabook designs, the ultra-thin M5...