While the foray into tablets and the pending foray into gaming consoles are savvy, fruitful ideas, it’s not like every consumer technology Amazon is working on is a surefire winner. Smartphones, for instance, may be an ill-advised business venture. Odds are good that any smartphone Amazon manufactures will be a quality phone, capable of competing with the iPhone from Apple and Samsung’s Android-based Galaxy line. But the phone business isn’t just about building a quality device. The bulk of new smartphone sales are performed by wireless carriers like Verizon (VZ) or AT&T (T) … partners that Amazon doesn’t have, and partners that may not be looking to further complicate their more-than-adequate phone selection with yet another manufacturer (an unproven one at that). If the carriers aren’t going to get excited about it, then AMZN stockholders probably shouldn’t get excited about it either. As of this writing, James Brumley did not hold a position in any of the aforementioned securities.