Erik Arneson <erik(a)starseed.com&gt; writes: FWIW, Scwm, the Scheme Constraints Window Manager, has been around for a couple of years-- it is Guile/Scheme based and more mature than Sawmill (but John's doing great work with Sawmill, and it does have its strengths, for sure). We just made release 0.99.2 of Scwm and its really very powerful including, e.g., a fancy constraint solver (my PhD research), a voice recognition interface, GUI configurability (similar to customize-- we use guile-gtk), and tons more. Greg J. Badros gjb(a)cs.washington.edu Seattle, WA USA http://www.cs.washington.edu/homes/gjb