Well it looks like have finally losend the screws on the iphone and itouch, go to http://www.apple.com/webapps/entertainment/signal.html this is by far the best app for itouch or iphone you control your itunes through safari.
Yep, fairly interesting, but... what if you have just an iPod Touch, and you are FAR, FAR, AWAY from any Wi-Fi hotspot
This is the main reason we are jailbreaking ours: to built in apps and make them truly portable!