Hi,
I would disagree with Zune software is the best, but it had some interesting features. Maybe something to be addressed in MM5?

What exact things you are missing?

Yeah, I have a friend who gave me her Zune HD. So I still use the software to this day since Zune is/was proprietary and not made compatible with MM.
But only because of that fact. I don't really like it myself, but Zune software would have probably had even more mass appeal had it lasted and
been more developed. I'm not much of a mainstream/mass appeal type person, although I do understand the need for that type of thing.

Anyway, I wouldn't count on it for MM4, but it would be neat if maybe someone could make a Zune skin (or some add-on functionality) for 5 that's more
reflective of the software than past attempts.

I have an extremely large music database. This is a super-clunky interface for accessing my music. It is very difficult to sift through all my music to get to what I want to hear. If there is any way to have one's library and overall functionality resemble Zune, that would be great. Zune was a failure as an ipod competitor, but its software was the best. Very easy to use in every way--the opposite of this one.