Not to nitpick, but..

You can't copy from the vehicle to an iPod / iPhone.

Some other player, perhaps (and yes, I get your point) but not an iPod / iPhone.

Apple and its restrictions again. It's really a shame.. I have a house full of Apple gear and I wonder how much better it would be if it could do just a little more. Which it's fully capable of, but noooo...

Backing up a collection would be a useful feature, yes - I agree.