AS3 or AIR controller support?

I recently updated my Flash Player and noticed a phrase that Adobe has added support for game controllers.

What I would like to know is how can I leverage this in an AS3 project?

Here is a website making reference to the support:

http://forum.starling-framework.org/topic/gamepad-support

It's a forum topic of discussion.

I would also like to know that if game controllers are supported, can any MIDI device be supported as well?  I am interested in using a 4x4 16-pad controller for something like an audio sequencer.