Thank you very much for a nice information regarding iOS/Android USB Hosts.
I agree. Google is missing a very big sector of audio consumer electronics which could be driven by Android powered devices. Looking at current audio stack implementation in Android OS the quickest and easy solution would be enabling ALSA API for user space and providing possibility to music apps to lock audio hardware exclusively. Also good thing is that Android OS is open source, so such future modifications are possible.IMHO Google has very likely no idea about high dimensions music devices, but Android will very likely have a big market share in this area thanks to the compliancy with the open standards: standard USB audio, open source Linux kernel, free Android, standard DLNA, standard Wi-Fi Direct, standard Wi-Fi Display.
Best regards,
Dmitry.