After listening to Helen and Ollie's Web 2009 Awards, and hearing them give the Public Service award to Spotify, I got really in to the free music service, and decided to write a Media Center application for it. At the moment it can search for artists, then drill down to albums and tracks to play those tracks individually via the regular spotify free application. It's got a bit of work to do still, but look out for a beta release soon.
My one question to you all is would people pay to buy a version that worked better but required a premium subscription? I'd need to pay for a premium subscription myself to be able to build it (you can't get access to the api without that), so I wouldn't be able to do it for free. The advantage of access to the premium subscription code is that better media center integration can be achieved with the Ogg audio played directly in media center, not via the Spotify application, although even then the Ogg format isn't supported on extenders, so it still wouldn't work with them. Anyone think it is worth it?
Another question is what about the name? SpotifyMCE seems just too uninspired, so I am open to suggestions.
UPDATE The beta is now available to download here.