Cool work, I like the transitions, but I'd caution people on actually using a funnel chart as it has a tendency to be easily mis-interpreted. <a href="http://blog.spark59.com/2012/why-not-the-funnel-chart/" rel="nofollow">http://blog.spark59.com/2012/why-not-the-funnel-chart/</a>
Very interesting how it's only using one div and border hacks per segment. So I guess in theory this would work on older browsers, other than just content clipping in IE8, IE7, etc.