Windows 10 Mobile accounts now for 14 percent of all Windows phone devices on the market according to the latest AdDuplex Report for August. The number is a significant increase from 11 percent in June and doubled its previous monthly growth of 0.5 percent to one percent.
Nonetheless, without a firm number of active devices month to month it's hard to know if the increased rate is due to wider adoption of new Windows 10 Mobile handsets, 8.1 phones being updated to Windows 10 Mobile, or just 8.1 users leaving the market (very likely).
Full story from the WindowsCentral blog...