The music player, yes. It's a Surfans F20 and not at all heavy. I'm not carrying redundant devices as often as you might expect because the phone stays in the glove box when I'm out. I only bother carrying it because you could walk a hundred miles without seeing a single public phone where I live.
I don't have a discrete camera yet. Might buy myself one for Xmas so I'm not constantly borrowing my wife's DSLR.