Reporting its third quarter financial results today, Apple said it sold 9.815 million iPods during the quarter—slightly below some analyst predictions, but a 21 percent increase compared to the same quarter last year. The company posted revenue of $5.41 billion and net quarterly profit of $818 million, or $.92 per diluted share, compared with revenue of $4.37 billion and net quarterly profit of $472 million, or $.54 per diluted share in Q3 2006.…