There's a HUGE oversight in 0.9.8, that I hope isn't final. In Artist, Album, Artist top track, etc views, there's no Star column!! It's been removed. The main reason I hate using the iPad and iPhone apps is you never show stars next to tracks, and it seems like whatever flawed reasoning behind that has made it through to the desktop app too.
The starred column is part of how I browse music. I often think "What's that song I like, by that artist." I'll go to the artist, and see the star, and play the song. Without the stars, I'm just seeing a sea of music by an artist I don't know that well, and have to read the whole list to remind myself of the song (if I even remember). Often I'll go to an album, and the stars remind me of the three or four songs I liked from it. I don't play the whole album, I just queue the three songs I've starred. WIthout the star column, I can't do it.
My biggest fear, using Spotify, is that I've trusted you with a lot of data that's reeeeally valuable to me - my list of music that I love. This data contributes to who I think I am - to my sense of self. Even though it seems like a minor change, this has a major impact on how I feel about Spotify, because it triggers that fear. The fear that someday you might cut me off from my list of starred songs, and I'll forget forever about music that I love.
If this version becomes the main version without the star column, it'll contribute heavily to me moving away from Spotify. Spotify KNOWS which songs I like on album X, but it's hiding it from me. It makes me feel like you're taking my data and keeping it from me. It's a really ugly emotion.
The iPhone and iPad apps don't expose stars enough, so I barely ever use them. Stars are one of the best features of Spotify. A really simple way to remind myself I like a song. You should be making them MORE universal, not hiding them.
Every list view, on every device, should show stars.