The prolific madman from down under, little-scale has posted his video of his 2600 midi interface.
He writes:
I love the sounds of the Atari 2600. I made a MIDI interface that gives you full control over the sound output of an Atari 2600.
Watch a demo video here.
I really want to thank Paul Slocum and all of the fantastic work that he has done for the inspiration.
I have created an announcements group for this project here.