Thanks to Michael for the pointer to this youtube video showcasing the "center for information work - the desk". All of us information workers (aka librarians) will want one of these. With some minor modifications this could be Ivan's user-sensitive information bar.
"Microsoft's Center for Information Work touch-desk concept at Convergence 2007 conference"
Of course due to budget constraints the reference desk is likely to be the first (if any) installation in many libraries.