Spotify is a unicorn no more. It promises to be the end all, be all solution to our music listening needs in the 21st century. And, by the beard of Zeus, they've delivered on that promise.
Spotify is not the first internet music service. There's Pandora, Rhapsody, MOG, Rdio, Zune, iTunes, Amazon Music, Google Music, and plenty of others. Yet despite not having a product in the US, Spotify became legend. A musical unicorn.
Microsoft's $15 Zune Pass subscription service—a pretty sweet deal already—has just porked up their offer by giving you 10 free songs that you can keep every month. We've talked about Zune Pass in our Zune reviews before, but it's basically access to all of the Zune Marketplace for only the price of a CD a month.…