Mobile devices are basically seen as a necessity these days and, like a dog without its bone, there’s almost nothing more depressing than seeing a modern human try to function without its phone. For marketers, these devices offer some very exciting creative possibilities, and MediaWorks has jumped on the ‘social TV’ bandwagon and released what it believes is a world-first smartphone app called Pluk that uses audio recognition technology to deliver content from the TV straight to the user’s phone.