The BBC have released a new picture of the Doctor and companion, downloadable from the official site as a wallpaper.
The Doctor has the new (temporary?) costume. Wallpaper-wise, I shan't use it myself. At work I've got the Matt, Karen, Arthur image which was released after the first day of filming on Series 7, and at home I've got a high quality screen-grab of Rory in front of the exploding Cyber-fleet - one of my favourite scenes from last year.