This year's Mobile World Congress in Barcelona broke the event's previous attendance records with some 67,000 visitors from 205 countries attending the four-day conference and exhibition. The GSMA, which puts together the annual confab, noted that more than 50 percent of this year's attendees held C-level positions, including more than 3,500 CEOs. The event provided a high-profile stage for companies to tout their wares to a global audience, yet, for a host of reasons, not all of their messages resonated. The Fierce editorial team mulled this year's winners and losers, coming up with some intriguing assessments. Click here for the Fierce MWC 2012 scorecard of companies and technologies.