1. If I understand correctly, you can stream any audio to AirPort Express via AirPlay what's playing on your iOS device (such as Rdio playing in a browser window) but you can only stream iTunes from a Mac - is that distinction correct? So, you can't stream your Beats music stream from your Mac via AirPlay (though I guess that's going to change soon). 2. Hopefully not a strange request from a wireless router (actually, many 3rd party routers can do that) but can you turn on and off the actual Wi-Fi signal via AirPort Utility when you plug in a Mac or PC to the Ethernet port? Say, you live in a smaller apartment and you don't want it to interfere with your sleep.