This competes with Sonos, not Apple. Wifi connected audio units with powered amps, synchronized into playback groups, tablet-based controller, starting at a $30

This competes with Sonos, not Apple. Wifi connected audio units with powered amps, synchronized into playback groups, tablet-based controller, starting at a $300 price point? But with video, which Sonos doesn't have. Sonos does have audio input (so I can, say, connect my TV's audio output and broadcast it throughout the house) but otherwise, Sonos had better up their game.