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Here is a WebGL version, with skeleton mesh:

It works quite nicely on mobile (Android Chrome and iOS 8 Beta Safari).

Really amazing how we can easily understand the form and motion from a few moving points. This other demo is really neat as well http://www.biomotionlab.ca/Demos/scrambled.html

This is very familiar. Did this use to be a desktop application?

BioMotionLab – Demo