BRIEF-RIM to tier service fees based on customer requirements
TORONTO Dec 20 (Reuters) - Research In Motion Ltd : * Chief executive Thorsten Heins says service fees will be tiered based on what
customers require in terms of security, manageability, other services * CEO Heins says looking to develop blackberry messenger service to create
additional service revenue * CEO Heins says carriers are committed to spending marketing dollars to
promote blackberry 10 devices * Chief financial officer Brian Bidulka says average revenue per user declined
last quarter as company worked to maintain subscriber base * CEO Heins says may still introduce new blackberry 7 models for more
cost-conscious parts of the world
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