Using IM Bots as V.R.

Something that just occurred to me... For those libraries using popular instant messaging software as a virtual reference tool, how about using IM bots as automated search help while in db's or the library catalog? This isn't a new idea, but now that Conversagent is being implemented by increasingly numerous for-profit organizations I think libraries should try it. Again, if only I had some of that elusive "free time," this would be a fun project.