A cool thing you could do with this is adding a javascript function in the file that automatically submits a story when this button is included. That would really elevate it from a link with some styling to something that's really useful.
I have since then modified the Like button (www.hnlike.com) such that it acts as a submit button if the link has not been submitted yet. If it has already been submitted, it simply links to the discussion page in Hacker News. See it in action here: http://hacksandthoughts.posterous.com/
Nice work, jermaink!
That´s why I thought about embedding a button as a link only.