In pictures: the 2012 Mobile World Congress

One attendee shows off his artistic side on a new phone Samsung Galaxy Note. (AP)

Nokia CEO Stephen Elop looks to revive the company's eroding relevance. (AP/Emilio Morenatti)

Nokia has unveiled two new handsets at the event. (AP/Emilio Morenatti)

Asus Chairman Jonney Shih shows off the new Asus Padfone. (AP/Emilio Morenatti)

The Nokia PureView 808 smartphone, a new phone from the Finnish company that boasts a staggering, 41-megapixel digital camera. (Nokia Corp.)

One woman tests out one of Nokia's new devices. (AP)

One participant stands under a huge poster for China-based Huawei. (AP)

Participants were allowed to test out and endless array of state-of-the-art mobile devices. (AP)

Workers of Telefonica protest against the cuts of their jobs at the annual event. (AP)

A view of the Mobile World Congress. (AP)

The trade show is held in beautiful Barcelona, Spain. (AP)

Feb. 27, 2012: Men walk past a stand with binary digits representing digital information during the Mobile World Congress in Barcelona. ( REUTERS/Albert Gea)

Feb. 27, 2012: A visitor checks a new Nokia mobile phone at the Mobile World Congress. (AP Photo/Emilio Morenatti)

Feb. 27, 2012: Nokia's new Lumia 900 is displayed after a news conference during the Mobile World Congress in Barcelona. (REUTERS/Gustau Nacarino)