Change is Good
Headphoneus Supremus
I can stream Google Play Music, my ripped music on SSD or the all access subscription to my FiiO E18 USB DAC/Amp from my Galaxy S3 via USB. Sweet it is, they have a very nice catalog and you can cache music to your SSD so not to waste mobile bandwidth when on the go.
While I appreciate your input... it does not help me because the N5 has no native USB support. This is why I ask if USB Audio Player Pro will have the ability to run while streaming music from other apps. My personal library took a hit a while back... so I rely on spotify a lot... at the moment.