Despite the obvious dominance of Apple (NASDAQ:AAPL) and Google (NASDAQ:GOOGL) in the smartphone arena, the battle for third is significantly more interesting. As Nokia (NYSE:NOK), with the assistance of the Microsoft (NASDAQ:MSFT) OS, continues to battle with BlackBerry (NYSE:BB) for third place, there is a significant disconnect between device perception and stock performance.

In the video below, Fool.com contributor Doug Ehrman discusses some of the major factors that have been affecting Nokia and BlackBerry, how these may play out over the next few months, and how you may want to be positioned at current levels.