The global business smartphone installed base will reach nealry 2 billion units in 2015 (1.9), and is expected to grow to nearly 3 billion units by 2020 at a CAGR of 9%. Greater adoption by individuals within the enterprise will drive organizations to consider expanding their enterprise deployments of smartphones. Strategy Analytics believes organizations are building their mobility strategies and increasing their spend in this area. However, poor economic conditions can slow device-replacement cycles. Strategy Analytics has seen the enterprise market begin to truly embrace the personal-liable user model. Several factors attribute to this: rise in individual smartphone purchasing, enterprise need to cut costs, and the availability of enterprise mobility management (EMM) solutions to manage such devices.