there are two I think..one for Gnome and one for KDE..hmm let me think. I think it was called gDesklets - the thingie that lets you install such applets, "desklets", as that menu-thing. run for it, google for it, go for it!
EDIT: oh, and the one for KDE: I'd start searching @ kdeapps.org (or whatever it was..well, you'll find it from kde.org anyway
but that gDesklets is for Gnome desktop)