This document analyzes mobile application stores and market trends. It reports that 44% of mobile devices shipped worldwide are smartphones, with Android having a 70% market share of shipped smartphones. The Google Play store is the largest app store with over 60 million downloads per day, accounting for 43% of all app downloads. Games remain the most popular app category on the Apple App Store, while social networking apps are most popular on Google Play. The document also discusses opportunities for mobile carriers to launch their own app stores and platforms to generate revenue from app downloads and in-app purchases.