I used to have the Sonos app on my Kindle Fire. I had not been on it in awhile and when I recently tried to use the Sonos app it was no longer there. I tried reloading but got the message "Sonos Controller for Android is incompatible with your device. You cannot purchase this app from this device"? Strange... so I registered on this Kindle Fire forum and did a search for Sonos and got no hits! Can anyone be so kind as to tell me what I'm missing here?