Chad clued me in to this rather clever type undertaking called Chartwellwhich, as far as I can comprehend, uses ligatures tucked away in the typeface to create pie, bar and line charts from numerical type. In other words, you type "20 + 5 + 60 + 15" and the typeface creates a visualization from those percentages. The downside? Apparently ligatures in @font-face are only supported in Firefox 4; so using this on the web is a long way off from full adoption but it's a great idea to keep an eye on.