I managed to get hold of some sneak peak shots of the Sonos Mac Desktop Controller. Sonos will be releasing the Mac DCR as part of the version 1.2 software upgrade, expected sometime later this summer.
No more details at this moment, since the company is not talking, but soon, I hope. I know I have been waiting for this for a long time, being forced to create playlists and managing music from the controller. However, I think a tight integration with my Powerbook 12 will make it even better.