The new Windows phone 8 app is missing the support for last.fm scrobbling. This can be a dealbreaker for many spotify users and I see no reason why not to support it because it should not be a very complicated feature to add.
Hey @Qwasd based on recent news around Spotify for Windows Phone, we're marking this as 'case closed'.
Spotify for Windows Phone has been placed into maintenance mode. Thus, we will only be making critical security updates to the current Spotify app and not releasing any new features nor improving support for old devices going forward. Users can continue to use Spotify on previously supported Windows Phones and Spotify will remain on the Windows Store.
We will continue to work closely with Microsoft to ensure the best experience on Windows platforms and are constantly evaluating the most effective path going forward.
Thanks for coming to the Community for your ideas and Spotify news.