Hello, So I just got a new iP5 64GB ATT and have unlimited data (5GB throttled). I have over 5000 songs on my macbook pro retina and want them on my iPhone, but only certain ones. It would take me forever to check each individual song... so, if I used itunes match, my only concern is that I would need an internet connection whereever i am to listen to music. Is this true? WOuld that kill the battery?