Just got an IP5. MacOS is too old to update its version of iTunes, so I can't connect my iPhone to my iTunes/computer (since IP5 requires one of the newer versions of iTunes). Any way I can still somehow transfer the music files that are in my laptop/iTunes to the iPhone?? (This is not an unlocked iPhone, and don't want to do anything funny to my phone.) Will it work if I just use a friend's macbook/newer version of iTunes??