I've never got around to writing code for it specifically (it's on my list of Things To Do for my Layout), but I have added a chunk of text and an image to the profile icon box--can share that easily if it'll do you, or would be interested to see if someone else has already done an actual extra text module, as that's something I want to do (ideally, I want the layout to allow as many extra text modules as the user wants but...)