iTunes came out with a radio recently with their new iOS.  In response, Pandora stock took a big dip, recognizing how quickly people would switch to the new system.  However, I question why people would so quickly switch after they have been such loyal fans of pandora.  iTunes has long cornered the digital music scene.  Yet they did not take advantage of the data they received from this dominance.  Many other services have come into place in this space including Rdio Spotify, Rhapsody, iHeartRadio and Pandora.  Yet somehow with the new iOS, the iTunes radio is expected to come to the forefront of this radio phenomenon.  This is especially true because its algorithms have far been perfected.  Even if you click on a song to exile it, it still will come up in your playlist, a seemingly huge annoyance to consumers (EW review for iTunes Radio).  However, this iTunes Radio will still come out on top because of its connection with Apple.  The connection with Siri is also a competitive benefit, although I cannot help but wonder how many people would actually use that feature.
Other internet streaming radio is also using other means aside from data to entice people.  Their iHeartRadio concerts featuring top radio stars is a great way to get people to popularize the app.  Apple has a huge amount of access to data.  It is now up to them to use it to the best of their ability, especially in this age of Big Data.