Canadians are reportedly dropping their homegrown BlackBerries in favor of the iPhone, new numbers show. Research in Motion, which is based in Ontario and makes the BlackBerry, shipped just over 2 million smart phones in the country last year, lagging nearly one million units behind Apple’s shipments. “For RIM, in its home market, to lose that No. 1 position to iPhone is strategically important,” said Paul Taylor, a fund manager in Toronto. RIM held a steady lead over Apple in Canada through 2010, when it shipped 500,000 more units than the iPhone maker.