Hmm, we don't have that particular model, though we did test that it worked with other old, discontinued models like the SpaceMouse Plus. Could you please be more specific about what problem you are experiencing? Does it not work at all or is it just the pan speed issue or something else entirely?
Also, it wasn't clear from your post, have you actually tried using it in 2011 or was that just speculation due to the lack of replies?