The iPod Touch does not have the actual Wi-Fi -- it just has the receiver for the Wi-Fi router. Either way, you cannot hack the iPod Touch's Wi-Fi receiver.
you cant hack someone wifi on the ipod touch without knowing the pass code..This is a different person, It is possible to hack into someones Ipod Touch . I have done it so many times . I have done it...
go to the "settings" app, then tap "wi-fi". Your iPod will automatically pick up any wi-fi around you, tap a network to use it, type a password if it needs it