CTIA's annual spring convention, held this year in May rather than its traditional March timeframe, was pleasantly timed after the Consumer Electronics Show in January and the Mobile World Congress trade show in February. Further, the New Orleans location was a welcome change for those industry denizens who have grown weary of visiting Las Vegas and Barcelona year after year. (Note, however, that the CTIA spring show returns to Las Vegas next May). As with most massive trade events, clear trends were evident at CTIA Wireless 2012, and the Fierce editorial team has pondered which companies and technologies we think emerged as winners and losers at last week's industry get-together. We divided our impressions into four categories: operators, devices, infrastructure and mobile content. Check out our CTIA scorecard here.