Comscore Introduces Device Essentials™ for Measuring Digital Traffic from All Devices, Enabling Optimization of Marketing Strategies and Customer ExperienceNew Capability Offers Insight on Traffic by Device and Connection Type for Operators, OEMs, Publisher and App Developers RESTON, VA, June 23, 2011 –Comscore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today announced the laun