I'm planning to create a Sonos+B&O setup on a friend's father home.
The setup will consist on Beolabs on "link rooms" connected to (hidden) ZP90 (I've seen on the Sonos forum that people connectiong Sonos to B&O never complain, on contrary to people connecting Airport Express to B&O). The remote control will be at first the Sonos software for iPod/iPhone, maybe a Sonos remote will be added later if he finds that the reconnexion time of the ipod is too long (has to be tested).
All the music will be stored in a NAS (probably a MyBook World NAS). This NAS also contains all SD and HD videos.
On the main room, a WD TV Live will allow full access to the NAS for video and audio playback.
This setup will allow to distribute audio all around the home, and select tracks on a cool touchscreen with cover art... Everything with perfect (B&O) audio quality. What I hoped for years B&O would do, but unfortunately they are too focused on backward compatibility with Masterlink to jump to this kind of tech now...