It appears that more downloadable content is on the way for The Force Unleashed as new achievements have been added to the game. The below screenshot should do all the talking:
So an additional 120 points worth of achievements are showing up, including ones to defeat both Boba Fett and Obi-Wan! It also sounds like it will be based on Tatooine from each of the achievements.
Thanks to Shem for the heads up! You can discuss this story in our forums.