The company has promising technology, but will it be commercially viable?Investors in Quantum Computing Inc. (QUBT 2.64%) have been on quite the roller-coaster ride over the past 12 months. The stock has declined by more than 30% over the past year, despite touching a 52-week high of $25.84 in late September.  With all the hype surrounding the potential of quantum computing, where QCi's stock goes next will largely depend on how much commercial traction it can garner in the coming year. Last week's acquisit ...