Shares of Nokia (NOK 0.39%) jumped up today by about 15%, leaving the stock up about 150% for the past six months. The company reported that "Devices and Services has exceeded expectations and achieved underlying profitability in the fourth quarter 2012." What does this mean exactly? Is it the win Nokia wants you to believe it is? In this video, Motley Fool tech and telecom analyst Andrew Tonner gives us a breakdown of just how positive this news really is for the company, and why it may still be a long road ahead.