Just saw this on snapfiles...
http://www.snapfiles.com/reviews/stickman/stickman.html
Stickman
Moderators: Víctor Paredes, Belgarath, slowtiger
I have posted the earlier version of this software to this forum. It seems that it got considerable improvement since then. Anyway, I tried this version; it is still not very handy... However, the concept (pin-bones) is interesting... Takeo's new "Moving Sketch" (i.e. AE Puppet Tool), which I have informed the AS community recently, uses the same technique.