The dark gray TweetDeck beta is one of the more attractive Twitter desktop apps out there. With it, you're able to engage with Twitter tweets much as you can on Twitter.com, and then some. TweetDeck beta, for one, also lets you follow friends' Facebook and MySpace status updates. It shares some similarities with Seesmic Desktop in its default tri-column view, which you can also shrink down to a single column. The requisite filtering buttons and other management tools help keep your in-box tidy. Like other Twitter apps, TweetDeck beta shortens links and manages pictures. You can block and unfollow contacts, even reporting them as spam.
The extras make it nice. TweetDeck beta includes a translation tool, and has recently added syncing, so you can keep your feed preferences and feed content identical on multiple computers and even the iPhone. It offers a lot of visual customization options, and the capability to add new columns, to keep up on search terms, for example.
TweetDeck beta still has some growing to do, especially in making its additional features a little more intuitive. So far its feature set is encouraging, and more robust than other, better established Twitter apps.