The hyperactive bloggers at TechCrunch seem to have bitten the tail of an exciting story: Spotify might actually be in the process of developing a browser version of their service to compete with Rdio, an proper explanation as to why they barely updated their desktop app. Also included in this transition might be much more socially active features, like better music discovery and improved playlist (much needed). Along with all of those changes, that might even be a great time to change the price for Spotify premium, perhaps lower than the current $10 per month.
Time will tell. And scanning the primary sources.