If you’re an iPhone or iPad owner, chances are you’ve already upgraded to iOS 7 (unless it is still downloading). One of the new features rolled out by Apple in conjunction with the new operating system is iTunes Radio. The free streaming radio service looks to supplant Pandora as the smartphone radio king. The more you listen to iTunes radio and music from iTunes, the more it learns about you and can tailor its selections to your preferences. You can create stations, listen to more than 250 DJ-curated ones, and upgrade by subscribing to iTunes Match to get rid of all the little ads. It’s also integrated with Siri so you can speak your requests right to your phone.