The numbers are in, and it's time to make sense of the data. ABI Research's Michael Morgan checks out the world's 10 largest branded cell phone makers in the fourth quarter of 2011, providing sales data as well as insight into their strategy and competitive position in the market. Though most research firms only list the market's top five handset makers, ABI lists the full top 10 (and the firm is providing shipment numbers for all of the vendors listed). What should we take away from Apple's (NASDAQ:AAPL) record quarter? Is Nokia (NYSE:NOK) strong enough to hang on through its transition to Windows Phone? And what are those company's in the bottom-five tier doing that should have the biggest players nervous? Special report