Rocking the Lumia 920 and the only thing I miss is Spotify. It's such a great platform and Spotify would make for a great WP8 app.
In the meantime, can you at least port the WP7 to support new WP8 devices? I don't know if I can stand waiting as long as it took for the Android app to come out...
We announced it a while back and so we're pleased to mark this Idea as Implemented since the Spotify WP8 is live: https://www.spotify.com/blog/archives/2013/02/07/wp8/
See here for more details: http://www.windowsphone.com/en-gb/store/app/spotify/10f2995d-1f82-4203-b7fa-46ddbd07a6e6