Ikke helt det samme som å lytte til naboen, men dette programmet lar deg generere radiosignaler fra pc-monitoren som så kan høres på am-radio:
http://www.erikyyy.de/tempest/

Fra linken:
All electronic devices send out eletromagnetic waves.
so does your monitor. and your monitor does it all the time.
and at very high frequencies. high enough for your short wave
AM radio.
all you have to do is display the "correct" image on your screen
and your monitor will emit the "right" signals.
Tempest for Eliza displays pictures on your screen. one for
each note in the song.