If you look at the images in this article by Steved you will see an icon of an envelope at the bottom center of the screen, which is an indication that he has an SMS message available to read -
http://www.xoutpost.com/articles.php?...ticle&artid=74
In my research on this I have reached the conclusion that only certain European ULF's came with this feature enabled. You might want to PM Steved to see if he can give you more details on his setup.