Acer's Aspire Timeline Ultra M5 laptops are hardly a mystery -- they've already been announced for the UK -- but until now we haven't had the chance to handle one in person. Luckily for us, then, both the 14- and 15-inch models are on display here at Computex, right alongside the similar M3 Ultrabook we reviewed earlier this year. Like the M3, they pack NVIDIA's Kepler-based GeForce G
