What CES told us about this year's smartphone trends

International CES has never been a showcase for new smartphones, but it always features several interesting announcements that highlight big trends for the next 12 months, and this year was no exception.Smartphone manufacturers are struggling to get people to upgrade because new models lack earth-shaking features. But these new devices will still offer significant improvements, including powerful processors, better screens and enhanced cameras, as seen at CES.Lets look at what some specific m