hopeing this will work but i doubt it.
if you look at the files on your iphone you will notice music is oddly categorised and kind of imposssible to tell which song is which; this means any recieved songs are going to be difficult to impliment unless you have the app change received data the same way itunes does. But also sent songs are going to be oddly named and possibly even iphone only encrypted
so the app might even have to do major decoding before send the song.
The iphone isn't like any other phone or mp3 player with simple folders for music and video with basic compatability. But may be just maybe its possible.
You should beable to send pictures quite easily I know that much.
