Do we need yet another online music service? Samsung certainly thinks so, as it's just introduced its very own internet radio service called, weirdly enough, Milk Music. So named for its supposed "fresh" take on music (Get it? Because milk is fresh? Yeah, we're not sure about that either), it's free to download from Google Play starting today. In fact, you can start streaming tunes immediately as soon as you launch it, no sign-up required. Best of all, the service is completely ad-free (for now at least -- we'll explain more about this later). The caveat, of course, is that it's exclusive to Samsung phones. Milk Music is a completely separate entity from Samsung's existing Music Hub subscription service, as the former is focused more as a free radio service that you can use without having to set up an account.