The InterOscitor MIDI video theremin
Meet the InterOscitor - a video theremin that works on Windows NT/2000/XP and can generate MIDI signals. It's a free download, only $14.95 to register. Looks like it's been around for a few years, but we just caught wind of it. I haven't tried it yet to see how it compares to other video theremins. Via: GetLoFi