Very cool. I'm one of the few (it seems) who likes these styles of chart, so that was a nice surprise. I love Ruby, and one of my few qualms about using it is

Very cool. I'm one of the few (it seems) who likes these styles of chart, so that was a nice surprise. I love Ruby, and one of my few qualms about using it is that it doesn't really have any cross-platform GUI libraries. Someday I'll try building one in JRuby...