Novelty or the next big thing? We’re unsure about Flutter, but it is rather marvellous. “We hated using the keyboard and mouse for controlling music in the background or watching movies on our computers from a few feet away. So we decided to solve this problem by using hand gestures to control music and videos via the built-in webcam in your computer,” explain the developers of the service, which is currently in Alpha. The idea: you wave at the webcam in your laptop or desktop monitor to play and pause music or videos. It currently works with iTunes and Spotify.