Zune Pass is still why I came to the platform in the first place. Nothing beats it. I can't do the culled Pandora like music radio + ads services. I love being able to download at will and create my own playlists, plus if I wanted I could just do smart DJ if I really wanted to just go like Pandora does it, with no ads! But the one thing that MS Zune team didn't really maximize with their service was making finding, streaming, and sharing playlists really really easy. That's one thing Spotify does amazingly well from what I can see. Service like Songza are also pretty cool. Its playlisting that should be at the heart of a really good music subscription service. Of the many things that I'm wondering about updates with Windows Phone 8, their XBOX Music nitty gritty details is up there for me.
Also with possible updates, two little tiny things that have been bugging me for years that I hope to see improved with the OS. 1. Percentages for battery life at the top instead of a little battery icon. I wanna see when I'm down to 5 percent dammit, instead of having to drill down into settings to find out I'm still at 15%. 2. Let me save email settings to automatically download pictures. Small thing but I just don't like having to choose every time I get an email from someone that I'm always going to choose to download the pictures. I get why they do it, but let me choose who I trust! Bah!