CNET Update is not a Belieber: Now playing: Watch this: Twitter #Music off to a glitchy start 2:55 Twitter #Music launched, but it hasn't quite found the beat. Bridget Carey explains the new music-discovery tool and its bugs -- and how to avoid embarrassing judgements about your music taste. Also in this tech rundown: - Facebook's latest changes include icons in status updates and Open Graph on mobile. - Google bans early Glass owners from selling or loaning out units. If that happens, Google will deactivate the Glass unit. Harsh. - Adding to previous reports, an image of a plastic iPhone has been posted online. - In a survey of 1,000 elementary school students, 86% of kids didn't know what the save icon represents. Kids these days! CNET Update delivers the tech news you need in under three minutes. Watch Bridget Carey every afternoon for a breakdown of the big stories, hot devices, new apps, and what's ahead. Subscribe to the podcast via the links below. Subscribe:iTunes (HD) | iTunes (SD) | iTunes (HQ) RSS (HD) | RSS (SD) | RSS (HQ) 11 TV shows to watch after Game of Thrones ends: Need to fill your Game of Thrones void? These shows might do the trick. 'Battle between fact and fiction' in Lord of the Rings biopic: The director of Tolkien explains how he balanced reality with the imaginary.