Synology's DS Audio app (Lumia 920) can control Sonos!!
Sun, Nov 25 2012, 1:41AM
I was just checking out Synology's DS audio app & was able to access songs on my NAS. I then noticed that it listed all the players connected to the network, including Apple TV & my Sonos components!
I can now play songs off my NAS on my Sonos system! 
It's not perfect, & I can't control multiple zones. The app is also a bit quirky & not as easy to navigate as the official Sonos one. But it works fine until a dedicated Sonos app for Windows Phone 8 is launched.





That's a lot of very excited question marks when what you clearly need is a sonos app.
HiFi / A/V / Bedroom