Although it's not strictly GPL, an interesting bit of software if only because they're trying to break out of the Windows/Mac model. I'm not that sure they've succeeded. See this newsforge article: http://newsforge.com/newsforge/02/08/11/2231241.shtml?tid=26

Keith ____________ Do not fear the arising of thoughts - only be concerned lest your awareness of them be tardy. Zen Saying