Comscore has partnered with the Mobile Marketing Association to launch a quarterly Mobile Barometer report. This contains audience measures for a range of mobile activities with trends in device ownership and platform share broken down by age, gender and country. This is the first in a series of quarterly reports that covers the five biggest mobile markets in Europe, namely the UK, France, Germany, Spain and Italy. Aimed at professionals working across the mobile value chain, the report provides valuable mobile insights and is a handy companion for executives to better understand the mobile marketplace.