We have been working on a lot of new things for the AA, including new hardware that allows switching between WiFi, Analog, Optical, and BT from the UI with volume control in the UI for all of them. The little volume knob will disappear. The other big feature that has been added is Spotify Connect. We have also written a new Updater. As soon as the Updater software is finished we can start releasing new versions of the AA software with the new features. Obviously the v1 version cannot have the volume control of Analog and Optical from the UI but it can have all the other new features.