Mobile network operator MTS Belarus has issued a press release noting that the total number of registered smartphones on its network has doubled from 500,000 to one million in the past six months, and now accounts for one-fifth of all subscribers’ devices. By the end of this year the cellco hopes to boost that total again to account for more than 30% of all subscriber units. MTS Belarus attributes the increased popularity of smartphones to several factors, including improved supply, more affordable devices, and consumer-friendly payment (instalment) plans. The carrier reports that the most popular operating system (O/S) is Google’s Android platform, which accounts for 54.0% of smartphones on its network, followed by Symbian (36.0%), Apple’s iOS (5.5%), Windows (3.1%) and others (1.4%).