Samsung, LG, Nokia, Sony, HTC, Acer, and Asus are just some of the big names set to descend upon Barcelona's city center for the annual Mobile World Congress trade show. MWC 2012 will once again serve as the stage for some of the year's biggest new launches in the mobile industry, plus there's always the potential for a software giant like Google or Microsoft to spring a surprise announcement. To stay abreast of all that happens during the show, keep your eyeballs locked to this stream.