Sonos Controller for iPhone

Free
The Sonos Controller for iPhone™ is a free application that turns your iPhone (or iPod® touch) into a full-fledged Sonos Controller. Plus, it fits in your pocket so you can carry it with you all over the house. Best of all, you can download it for free on the App Store in seconds. Just grab your iPhone and simply touch the screen to pick a room, point and flick to pick a song, and then hit play. Grouping zones and searching tracks is super easy. You can mix and match Controllers (CR200, CR100, Sonos Controller for Mac or PC and Sonos Controller for iPhone) for maximum flexibility. Or get started with Sonos using the iPhone you already own and one or more ZonePlayers spread throughout your house.