Microsoft promised back at Build that that a slew of big-name apps would reach the Windows Store, and it's making good on that vow. Spotify has released a Windows Store version of its app in every country where its streaming music service is available. This isn't a redesign, for better or worse -- Spotify is really just porting its existing app over using Microsoft's Centennial framework. The biggest immediate difference is that you'll get updates through the Windows Store. This release is more important in what it represents for Microsoft's long-term Windows plans than anything else.