The stock of Research In Motion plunged in extended trading Thursday after the BlackBerry maker said the cost of launching new smart phones would eat into near-term profits. The company is launching three major new models in the current quarter, and the cost of ramping up production will trim the company’s gross profit margin, co-Chief Executive Jim Balsillie said. “We really just pack it full of features and cost-reduce later,” Balsillie said of the new models. “There will be an impact on hardware gross margin.”
