Silhouettes of visitors are seen at the App pavilion during the Mobile World Congress in Barcelona, Spain, Feb. 27, 2013. The congress, representing the interests of the worldwide mobile communications industry, takes place Feb. 25-28 in Barcelona.

From the Mobile World Congress website:

During the four days of Mobile World Congress, the 2013 conference program will highlight the impact of mobile on individuals and businesses – in developed and developing markets – across a range of industries. As always, the conference program will challenge and educate attendees, providing essential insights on the latest technological developments, market opportunities, next-generation services, and devices which are shaping mobile communications.

Thought leaders and industry experts from the most influential companies within the expanding mobile value chain will be participating in more than 40 conference sessions at Mobile World Congress, from thought-provoking and visionary keynote presentations to interactive panel sessions, all addressing the most pressing topics in mobile.