Intercom system, manager of nest or nest like devices or internet of things/other things & innovation not yet conceived . Lock in and lowest common denominator: This is the down side to sonos being a proprietary closed system. Sonos please seriously consider opening up some api's for developers to write apps to. A intercom system is a use case specifically tailored to the customer who buys your equipment. I have been a sonos customer for three or four years. Love it. I moved and have been renovating a home. I nearly bought your sound bar and sub but others are catching up, dennon as an example, and others. Patent infringement lawsuits won't stop innovation and imitators. Only your innovation will maintain your position. Open your APIs!! I bought a traditional surround system and Repurposed a sonos connect instead. Why? Flexibility and future protection.. Sonos would have got the sale ifyou had an open Eco system of others writing to your ***PLATFORM*** My opinion and I am only the consumer with connects, amp, play 1s 3s and 5s, is that I would invest (that's what consumers of your product do) more in sonos if you even pretended a little bit more that you wanted to leverage an apple and android Eco system of apps. If you had say a voxer app or similar that enabled intercom and other things like integrating nest devices into your single management GUI, wow would that be innovative. Sonos you guys are awesome but the same thing that got you into our homes can be your undoing by an upstart who embraces open api's and views their devices as a ***platform*** to be leveraged by an Eco system including us the users to utilize in ways that make life easier and better and Leverages our investments. Sonos isn't cheap. If you want to command a premium you should begin to look at being able to do it long term. Open your systems to innovation. Don't be the Microsoft or Cisco of sound. Be the apple or Arista networks of sound AND home automation and innovation!