This is incredibly cool..
http://www.engadget.com/entry/1234000610023097/

Here are some examples..
http://www.neowin.net/forum/index.php?act=ST&f=7&t=254936&st=0#entry585069755
http://mitglied.lycos.de/creamworks/ipod/ipodhack/mnipod.jpg
http://ipodstudio.com/forums/showthread.php?p=7152#post7152
http://arje.net/ipodpersonification

They mention you probably void your warranty. This is true..however, you should be able to restore to factory settings and have everything go back to normal. I’m tempted to experiment, but its an expensive mistake if something goes wrong.