They have this idea.
Full screen control UI from your smartphone via BT.
(Wave in your pocket, bag or beside you. You control from your smartphone)
Wave has a smaller screen for limited DAP controls.
(Use Wave without your smartphone. Basic controls howerver)
Eliminating the big screen on Wave removes much noise that it creates (Argument of LHlabs) .
Some will probably like this, but the BT will drain some battery life, right? I don't own a smartphone, don't want one. I can live with a basic UI and no album art if it sounds awesome.