Sonos (www.sonos.com) is a pretty wild service. Not to be confused with Songza, which also works on Sonos (and is just as awesome), Sonos is a ‘Multi-Room Music System’ and it relies on HIFI-WIFI speakers placed throughout your abode. You can then stream music to all or just some of your speakers, using various sources like Songza, Pandora, Amazon Cloud Player, Beats Music etc.
There’s also a familiar story here: on Android and iOS, users get free software to control their Sonos Zones at home. Windows 8 and Windows Phone? Not so much.