Last night my wife and I had a blast using the AA. We celebrated ST. Pats by having a couple of whiskeys and cokes, and listening to great music. She had her iPad, I had my iPhone, and we were both able to access the AA interface at the same time, and independently queue songs to the playlist. It was a lot of fun!
BTW, I just received my 128GB USB Mini Drive in the mail today ($35 USD). I was able to copy my entire online library to the USB, and it only used 28GB (plenty of room to add more songs). I just plugged it into the AA and within a couple of minutes, all music was automatically indexed and available.
Ian, my wife and I are so impressed with the AA, and really enjoying it. You should be very proud!