Twitter has bought TweetDeck, the desktop and mobile application for organising tweets in handy columns, for more than $40 million in a cash and stock deal, CNN Money reports citing sources close to the deal. But there’s no confirmation from either player in this game: “For all those who might be curious, we continue not to comment on rumors,” Twitter’s global PR account tweeted earlier this morning. There were no tweets at all on the matter from TweetDeck founder Iain Dodsworth.