With screen space being so limited on my iPods (most especially with my mini and my 4th Gen mono), it's great to be able to turn off the display of icons for track lists in the Playlist Viewer (especially because when it's turned on I don't actually see any icons anyway, just a column of unnecessary empty space where the icons should be). I wish the setting would also apply to the icons in the list of playlists in the Playlist Catalog. I also wish there was a way to turn off the display of icons for track lists in the Database browser.
I have a feeling someone is going to reply, "Theme it."