I installed TweetDeck v.0.31.1 last night, and it has all of the features on my wish list:

  • keyboard shortcuts
  • control over the positioning of notifications (I moved them down to the lower-right corner – They used to be in the upper-right, and always popped up covering up the Firefox search box just as I was about to use it)
  • notifications now show the contents of new tweets, not just a count of how many there are

http://www.tweetdeck.com/beta/download/