Update 2013-12-12: I received information from Paul Annett (@paulannett, http://paulannett.com/) that TweetDeck is very much alive: The screen capture is from TweetDeck, so proof. Note that I missed the news by half a year. I need to use Twitter more. The previous version was developed in Adobe Air as indicated below. The new version is Read more about The Twitter client is dead, long live the Twitter client[…]