RIM Shares Unaffected as BlackBerry Curve 9315 Introduced by T-Mobile

01/03/13 -- T-Mobile USA, Inc. and Research In Motion (RIM) (NASDAQ: RIMM ) today announced the most affordable BlackBerry(R) smartphone on T-Mobile's nationwide network - the BlackBerry(R) Curve(TM) 9315. Powered by the BlackBerry(R) 7.1 operating system with 3G connectivity, the sleek new smartphone is easy-to-use and provides tools that enable customers to stay connected to