BlackBerry may be hoping for a recovery in its smartphone business, but it's hitting rock bottom right now. Gartner analysts estimate that BlackBerry's once-dominant platform hit 0.0 percent market share in the fourth quarter of 2016. Yes, zilch. The company did ship 207,000 phones, but that gives it less than half the unit volume of the "other OS" category. This wasn't hard to see coming given BlackBerry's years-long decline, gradual shift toward Android and recent focus on services. It's still incredibly symbolic, however, and shows that the company's deal with TCL effectively amounts to starting from scratch.