Mobile World Congress
The Mobile World Congress? Sounds about as action-packed as the United Nations. In fact, it's where leaders in telecommunications and consumer electronics set the trends for what's next in smartphones and tablets. The annual conference in Barcelona draws technology executives from around the globe looking to get a peek at gadgets such as the Galaxy S5 that Samsung just unveiled there. Facebook CEO Mark Zuckerberg and IBM chief Virginia Rometty are among the speakers this year.