The ever-expanding smartphone screen: how supersized became everyday

It used to be that any smartphone screen beyond three inches was considered big -- and it was, for an audience still weaning itself off of flip phones and PDAs. Flash-forward several years, however, and we're to the point where many won't even consider less than a 4-inch screen, and the once-unfathomable 5-inch display is quickly becoming the de facto standard for high-end models. It's clear that many of us like our phones supersized, Zack Morris style. But when the 6.1-inch Ascend Mate is a rea...