A visitor looks at the new Sony Xperia Z phone and tablet through a glass window during the Mobile World Congress in Barcelona

 
A visitor looks at the new Sony Xperia Z phone and tablet through a glass window during the Mobile World Congress in Barcelona
A visitor looks at the new Sony Xperia Z phone and tablet through a glass window during the Mobile World Congress in Barcelona February 25, 2013. The GSMA Mobile World Congress, representing the interests of the worldwide mobile communications industry, takes place from February 25 to 28 in Barcelona.   REUTERS/Gustau Nacarino