Hi, Alexa,
we at IU Bloomington added a widget to our EDS implementation - as well as to all of our Ebsco databases. you can see it here:
http://screencast.com/t/5PjvtugbEstLin looking at our stats i wouldn't say we've been exactly *deluged* with chats from that source, but certainly for the folks that do opt to use it, it seems like a real help. and we feel really good about having it there, so that's something. :)
happy to help in any way, drop me a line offlist if you'd like to know more.
cheers,
cg