House parties are really the rule, not the exception here at SXSW -- it's an outgrowth of the show's Austin roots. But Sonos has gone a ways toward providing a unique experience for visitors to its Studios space. For one thing, there's a room with a custom-built light show that utilizes a Sonos soundbar, several projectors and a Kinect camera, generating a dynamic light show based on the music and user movement. Even cooler is the speaker-building workshop created in partnership with Moog, which features boxes