In this video, tech and telecom analyst Andrew Tonner outlines the investing thesis behind Nokia (NOK 0.48%). The biggest attraction is the launch of the high-end Lumia smartphone with its Windows OS. This is Nokia's attempt to enter a market dominated by Google and Apple. Another plus for the company is its restructuring efforts that should drive down costs and improve product cycling time. Nokia also makes a low-end smartphone that has enjoyed some success in emerging markets. Lastly, Nokia is a provider of GPS mapping technology that is used in all Windows smartphones and in many automobiles. This GPS licensing revenue should help the company stay afloat as it works to reassert itself in the mobile telephone market.