...have a facility to fill in the artwork and information tags of the songs I ripped myself with data from the store? When I did my rips, I got song and artist, I'd like the rest too, and Apple has it. (Might it even be a way to collect some revenue?)
...have a utility that "listens" to your MP3s to fill in the BPMs, where it thinks it stands a chance? Would be very handy since it has a BPM autoplay list?
...not have a good analysis feature to suggest purchases based on your library, especially which songs got a high rating?
[cloned from my Slashdot blog]