AS111 doesn't support USB Audio because Android doesn't support too.
I read the AS111 is already hardware compatible on http://www.gadgetreview.com/2012/02/...ck-review.html :
Android does not currently support audio out through USB, but all Philips Android docks do, so when Android does support it, the AS111 will be ready (after a firmware update to the hardware).
Since Android 4.1 Jelly Bean, USB Audio is available : http://developer.android.com/about/v...elly-bean.html

When do you plan a new firmware for AS111 which support USB Audio ?