I'm sure there has to be something that does this somewhere, but I'd really like to see Windows Media Player and the Zune player (not the device) have the ability to organize your music in several ways. I'm not one to keep up playlists. I hate the idea of updating different playlists when you add new music. Instead, I like to organize music by genre. Granted, we've had the ability to add a genre to music for years and players have been able to filter based on genre, too; but I guess I just liked the idea of right clicking on a directory and selecting Play with Windows Media Player. Very simple. Of course, Zune doesn't have this comfort. What I end up doing there is changing all of my genres to be in a handful of groups, like electronic, hip hop, rock, pop, etc. Typically, when I listen to music, I want one or the other, so this works best for me. After ripping a new CD, tho, the directories and file names are wrong. Sure, I have a little control with WMP, but not much. I don't think the ripping part is where I need the flexibility, tho. What I'm really looking for is a way to say, "Here is my music library; now reorganize it based on these constraints."
Like I said, I'm sure there are tools out there that do this. I haven't looked. While I love the partner ecosystem Microsoft has built around itself, I want these features in the tools themselves.