I notice that YahooOrgChart.java references some internal Yahoo! services. This makes me skittish.
1) Does Yahoo! policy allow publicly released code to reference internal services?
2) What happens to non-Yahoo! users of Chukwa?
I'd be okay sticking in the public tree as "example code", provided it was clearly documented as such, provided Yahoo! signs off on that, and provided that users outside Yahoo! don't see weird artifacts.