BlackBerry Ltd. ( TSX:BB )(NASDAQ:BBRY) has probably one of the most well-documented and longest turnarounds in recent memory. Even better, depending on who you ask, you can expect widely different answers on the company's turnaround efforts; answers range from "it's already failed" to "it hasn't even started." So why is BlackBerry on the verge of a turnaround? Here are three reasons. 1. BlackBerry's final hardware device could be a winner First and foremost, it comes down to devices, or rather, a lack thereof. Historically, BlackBerry's devices were seen as the envy of the market: high build quality, an iconic keyboard that allowed users to quickly tap out emails, and fairly resilient devices that could be dropped off a second floor or run over by a car and still survive. (BlackBerry owners: please, don't try it). Unfortunately, that couldn't stop BlackBerry from falling further behind the competition.