Sonos is a wireless distribution system for a multi zone environment. It allows to hear different tracks on different places of a house, by selecting zones and music using a remote control. Sonos works on Mac and Windows and by support WMP11 can play non-DRM but also DRMed music from PFS stores and Zune Marketplace...
Ever wanted to fit the music to your bedroom, kitchen or garden ? Or maybe you are one of those who have a working radio on every room of the house? Then Sonos is definitely for you!
To learn more about the concept of Sonos, there is a very good presentation on it's website. (In th frontpage click "Demo").