Filed under: Cellphones, HandheldsSo apparently Apple knew what it was talking about after all. Research firm Canalys says that Apple stole the rug out from underneath RIM in the third quarter to become the world's number two pusher of smartphones, taking a hearty 17.3 percent market share compared to RIM's 15.2 percent and Windows Mobile's 13.6 percent. For what it's worth, the firm says RIM could very well bounce back in the fourth quarter with the Bold, Storm, and