In the following video, Motley Fool tech and telecom analyst Andrew Tonner looks at Google's (NASDAQ:GOOGL) Android mobile operating system division, and its coming change in leadership. Andy Rubin, who co-founded the Android OS in 2003 and has led that department ever since Google acquired the company in 2005, has announced that he's stepping down. Andrew tells us about the new incoming leader of possibly Google's most important department, and whether he has what it takes to continue driving Google's incredible mobile growth.