Blackberry subscribers base From Q3 2013 MD&A
RIM will be adjusting the methodology it uses to calculate the size of its subscriber base for the fourth quarter of fiscal 2013 and subsequent fiscal quarters.
Rather than calculating the total of all subscriber accounts that have an active status at the end of a reporting period and for which infrastructure access fees are thereby generated, RIM will identify its BlackBerry subscriber base as the total of all BlackBerry subscriber accounts that are provisioned to access BlackBerry services, regardless of whether RIM is receiving infrastructure access fees from each such subscriber in any given month. The Company believes this change will better reflect the base of BlackBerry users
that may contribute to service revenues in the future, whether solely through infrastructure access fees or the integrated service and software offering being developed.