CHICAGO, April 18, 2011—According to a new study released today by Arc Worldwide, Leo Burnett‘s marketing services arm, 50 percent of Americans use a mobile device to navigate their fast-paced, sporadic shopping journey. Whether it’s comparing prices of TVs, ordering a morning latte or reading restaurant reviews – mobile shopping has become a way of life for Americans. This trend is quickly and decisively changing the traditional shopping journey and leaving companies with a serious ultimatum: deliver valuable ....