TweetDeck has officially announced its acquisition by Twitter following rumours over the past several weeks that a deal has been in the works. In a post on the TweetDeck blog, founder Iain Dodsworth confirmed that the company completed the deal on Tuesday and is presently in the process of “joining the flock.” Dodsworth goes on to indicate that Twitter has acquired TweetDeck for its focus on the “Twitter-centric power-user,” suggesting that Twitter is looking to leverage TweetDeck as a tool for more advanced users who are not adequately served by twitter.com or the current official mobile clients. Dodsworth also notes that although some changes should be expected, the TweetDeck team will remain in place and based out of London “with the same focus and products” as before. This latest move by Twitter follows last year’s acquisition of Tweetie which became the official Twitter mobile client for iOS devices.