Apple is now a large enough smartphone maker that it could soon overtake Nokia for the top spot, IDC said Wednesday. The 18.65 million iPhones it shipped in the winter were enough to give it 18.7 percent of the smartphone sphere just as Nokia's relatively stale growth, to 24.2 million, saw its share drop down to 24.3 percent from a much higher 38.8 percent just a year ago. RIM's quarters don't overlap with most of the industry, but IDC believed that RIM shipped 13.9 million BlackBerrys, leading to a drop from 19.1 percent of the field in early 2010 to just 14 percen
