Sonos is excited to announce software version 3.8.3 and introduce Wireless iTunes Playback from the iPhone, iPod Touch, and iPad.
How does Wireless iTunes Playback from the iPhone, iPod Touch, and iPad on Sonos work?
You can select and play music and podcasts stored on any iPhone or iPod touch that’s on the same network as your Sonos components. Playback is perfectly synchronized, in any or every room of your home. Simply use your iPhone or iPod touch to make audio selections, and then you can use any Sonos controller to control playback.
What do I need to start using Wireless iTunes Playback on Sonos?
You'll need an iPhone, iPad, or iPod Touch with DRM-free music in MP3 or AAC format stored on the device itself. Wireless iTunes Playback is compatible with the iPhone (3GS or later), iPod touch (4th generation or later), or iPad (2nd generation or later) running iOS 6 or higher. The device will need to be connected to your home WiFi network.
Make sure your Sonos system is on software version 3.8.3 or higher. If your device is not capable of running iOS 6, you won't be able to use Wireless iTunes Playback, but you can still use the Sonos Controller App. The Sonos Controller is compatible with all iOS versions higher then 4.1.
More information is available here: