Twitterfall, an app that lets you monitor new updates to Twitter on certain #tags or search terms, has been a fixture on the big screens in the Telegraph’s integrated newsroom for the last two weeks, according to this pic from Telegraph.co.uk editor Marcus Warren (courtesy of TwitPic):

The Twitterfall of #twitterfall is the first non-mainstream media news source to appear on the screens, Warren said in a Tweet, adding that it’s the same size as the projection of Telegraph.co.uk on the screens and given more space than Sky, BBC and CNN on the wall.