Word - it is also usable as a 1/8" stereo patch cable.
So would a standard 1/8" stereo patch cable work?
if it's just an audio signal, wireless play should be trivial.
I would guess they just used the 3.5mm jack plugs as they are cheap, and they would only need 3 wires (Ground, Rx, and Tx)
The Rx and Tx line must get crossed over in the cable (so that each machine connects it's transmit line to the receive on the other)
If you use this cable as a stereo patch - I'm guessing the left and right channels get flipped?
It wouldn't be an audio signal, just a simple serial signal (9600 bits/sec or something) Theoretically it could be converted into a wireless format, I guess, if you can be bothered