It plugs into t he second joystick port, yup. It's supposed to work with up 1.3 (at least I've been told). It's an odd beast, because it doesn't use the system clock. This why I want to find the CLI commands to read the thing.
The only neat thing about this device is that it has a pass through, so the port can still be used......
Hmm, I guess it came with a diskette but searching my usual sites(a skeleton list these days) came up with nothing. Perhaps post on Amiga World, amibay, etc..