Acer's new Liquid Z5 smartphone is more expensive than it should be (hands-on)

Acer didn't just bring a couple of new tablets to Vegas this year, but something to make calls with, too. The latest addition to its Liquid range after the top-spec S2, the Z5 is very much a "value" proposition, as the raw numbers show. We're looking at a 5-inch, 854 x 480 display, 1.3GHz dual-core …