The default setup has the Nexus Q accessible to anybody on your LAN -- no emails required. (There is a mode where you can restrict sharing to invited users onl

The default setup has the Nexus Q accessible to anybody on your LAN -- no emails required. (There is a mode where you can restrict sharing to invited users only. Again, this is not the default.) Yes, you need to install the app. But assuming you have a NFC-enabled device, all this takes is tapping your phone on the top of the Q. That's not really what I'd call "a lot" of setup.