Timely! I've been searching for "Zoomable Sunburst" but was unable to find it. If it's "a treemap, except it uses a radial layout" why don't they call it a ra

Timely! I've been searching for "Zoomable Sunburst" but was unable to find it. If it's "a treemap, except it uses a radial layout" why don't they call it a radial treemap, instead of a sunburst? Anyway, recall problems aside, this gallery is fantastic.