And now, one of the most anticipated I/O announcements. As rumored, Google has been working toward the launch of its own music-streaming service, and the official unveiling came today. Dubbed Google Play Music All Access, the product has a strong focus on personalized recommendations via the so-called Explore feature. Like with other services such as Last.fm and Spotify, All Access will let you start a radio station while listening to a particular track, and in-depth tweaking controls allow you to nix songs that don't suit your