In today's changing tech landscape, mobile is quickly becoming one of the most important growth drivers and companies have taken note. One prime example is daily deal dynamo Groupon (GRPN 2.90%), which has made the emerging platform a cornerstone of its turnaround efforts to great success. And now as the company looks to a brighter future, Fool tech and telecom analyst Andrew Tonner explains how Groupon's rocking it in mobile like never before and what it means for Groupon's investors.