I was excited to finally get a peek at the University of Chicago Library’s experimental new search interface for their catalog, which they’ve named Lens.  Basically it’s a souped up or customized version of Aquabrowser.  I have only just started to poke through it but visually and functionally, it looks great.  Those who attend Code4Lib 2008 might get a chance (if the program proposal is approved) to hear Tod Olson @ UChicago and someone from Aquabrowser talk about the work they did with it.