I'm back from Barcelona and the GSMA World Congress. For five days I was up to my ears in cell phones and tapas (not at the same time) but I came away with some fresh insights into our global mobile world. As the largest cell phone show on the planet, GSMA produced a lot of news this year. Samsung, Nokia, and Sony Ericsson all announced new models, and hundreds of other companies jockeyed for the spotlight, as well. Senior Editor Bonnie Cha and I were just two of 55,000 GSMA attendees, but we manged to track down the coolest products and hottest news from the show. Join me today Thursday, February 21, at 11 a.m. PT (2 p.m. ET) where I'll be available to answer all your questions about what's next in cell phones. To participate, just visit the live chat page during the given time and type your questions into the form. I'll do my best to answer as many as I can. And in the meantime, be sure to check out our full GSMA coverage.