Idea for Facebook Profile

I was wondering...
:)
Since Facebook as started behaving as twitter, I was wondering if it could also come up with some ways to have some info on who just visited my profile.
I would love to have such widget. Such widget ideas do already exist in the world. It is just matter of being able to integrate them. When I talked about the widget, I was referring to one just like the stumbleupon feature. There are similar widget in Mybloglog and Blogcatalog which shows the recent visitors...



Next would be Facebook Email(/send as private message).

You can see clear mentality behind these ... If I can not come up with new ways to impress people, I will try to clone the ideas and mix them up and sell it as cocktail!