chebby said:
No it isn't, that's one of the biggest moans, it ONLY works with non-DRM mp3 and aac files, nothing else. It also only works with files that were put there by an iTunes sync (or presumably purchased through iTunes on the device itself), if you, for example, download a podcast outside of iTunes Sonos won't see it, until you add to iTunes on the PC and then re-sync the device.
One can only assume that either the additional functionality is coming in the future or that it's not possible without paying a full Airplay license, which I don't think Sonos will be doing. Tbh I'm kind of puzzled as to how they've managed to do this without Airplay anyway, I suspect it's setting up a share on the iDevice and pulling the files off as, once scanned, every song on the iDevice is available to all Sonos devices (be interested to see if multiple tracks can be pulled from one iDevice at the same time), rather than the iDevice pushing the audio like Airplay.