Agree with this!
If I have to do anything more than push a few icons on my phone to listen to whatever it is I am streaming I am not interested.
Amazon HD resides within the Amazon Music service on the Node, its just not very well implemented yet. Hopefully this will change. Unlike Tidal and Quboz where you get album thumbnails that show what the resolution is, Amazon Music just shows albums as a list, with no way to know what the resolution is until you start playing. Once playing, the album resolution will show in the now playing box. I haven’t found a way to search by resolution. This is with the BlueOS app on iPad. Hopefully, Bluesound will issue an update to address this. I’ve signed up for the 90 day trial of Amazon HD but won’t renew unless there is a change in the Bluesound app. If I’m missing something, hopefully someone will point me in the right direction.

That's exactly what my Node 2 does.  Still deciding if there is any difference between this, (both 16/44.1 &  24/96) and Tidal w/MQA?  I've listened all weekend and if there is a difference, I sure the hell can't hear it...
I had mentioned above that I can scan and save artists, playlists, albums, etc. from the one on my lap, but the list is independent of any other device. When I checked my phone app and laptop app this morning, they both had the same saved playlists as the one I originally saved them to. But I wish they all would show what was currently playing and had the ability to save, skip, change, etc. what was playing on the other device.
As of right now I could not try Amazon Music if I wanted to.
Neither mconnect or Bubbleupnp offer Amazon Music as an option.
Being Ayre based streaming they are my only options for control app's.

If it gains traction I am sure it will be added to one or the other at some stage.