Yes, you did not get me wrong, there is now this iPad, iPhone and iPod Nano Robot that can walk and “dance”!
Check out the iPhone and iPad Robot Video:
iPod Nano Video:
Kazu, the maker for this robot said: “For this project, I have developed very simple way to control two servo motors by iPod nano: using the sound from headphone jack as PWM signal that controls the servo motors! Yes, two servos are powered by miniature 3.7V 110mAh Li-Po battery and control lines are directly connected to headphone jack! Very simple!”