The biggest potential change to desktop GUI since Windows, or an overworked physics farce that will never see broad use? Either way, the ability to pile, scatter, bump, ruffle, nudge, toss, lasso, fold, crumple, and shelve icons as if they were physical objects, makes my head spin - in a good direction. Here's a demo (the 7 min version is worthwhile!!): http://honeybrown.ca/Pubs/BumpTop.html Here's a review: http://www.43folders.com/2006/06/23/bumptop/#more-584 Regards, Ellis Godard, Ph.D. Assistant Professor Sociology Department Cal State Northridge www.csun.edu/~egodard